The fleas of North America : classification, identification, and geographic distribution of these injurious and disease-spreading insects - Ewing, H. E. (Henry Ellsworth), 1883 -1951 (U.S. Dept. of Agriculture, 1943)

Die Flöhe (Siphonaptera) der Haustiere. Zusammenfassende übersicht und eigene Beobachtungen - Wolffhuegel, Kurt. (1910)

Flora of the Rocky Mountains and adjacent plains : Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (Rydberg, 1917)

Flora von Neuburg a. D. Verzeichnis der in den Amtsgerichtsbezirken Neuburg a. D., Rain und Monheim und den angrenzenden Teilen des übrigen Schwabens, Mittelfrankens und Oberbayerns wild wachsenden und häufiger kultivierten Gefässpflanzen - Erdner, Eugen. (Druck von Ph. J. Pfeiffer, 1911)

Flore de l'arrondissement de Furnes et d'une partie de celui d'Ypres, avec description géologique, accompagnée d'une liste zoologique et détails sur quelques animaux et insectes de ce pays par un pharmacien - De Tollenaere, Aimé (1857)

Földtani közlöny - Magyar Földtani Társulat. (1911)

Földtani közlöny - Magyar Földtani Társulat. (1912)

Földtani közlöny - Magyar Földtani Társulat. (1913)

Földtani közlöny - Magyar Földtani Társulat. (1914)

Földtani közlöny - Magyar Földtani Társulat. (1937)

Földtani közlöny - Magyar Földtani Társulat. (1941)

Földtani közlöny - Magyar Földtani Társulat. (1950)

Földtani közlöny - Magyar Földtani Társulat. (1952)

Földtani közlöny - Magyar Földtani Társulat. (1994)

Forest and stream ([Forest and Stream Publishing Co.], 1873)

Forest and stream ([Forest and Stream Publishing Co.], 1874)

Forest and stream ([Forest and Stream Publishing Co.], 1875)

Forest and stream ([Forest and Stream Publishing Co.], 1876)

Forest and stream ([Forest and Stream Publishing Co.], 1877)

Forest and stream ([Forest and Stream Publishing Co.], 1880)

Forest and stream ([Forest and Stream Publishing Co.], 1881)

Forest and stream ([Forest and Stream Publishing Co.], 1883)

Forest and stream ([Forest and Stream Publishing Co.], 1884)

Forest and stream ([Forest and Stream Publishing Co.], 1885)

Forest and stream ([Forest and Stream Publishing Co.], 1886)

Forest and stream ([Forest and Stream Publishing Co.], 1887)

Forest and stream ([Forest and Stream Publishing Co.], 1888)

Forest and stream ([Forest and Stream Publishing Co.], 1889)

Forest and stream ([Forest and Stream Publishing Co.], 1890)

Forest and stream ([Forest and Stream Publishing Co.], 1891)

Forest and stream ([Forest and Stream Publishing Co.], 1893)

Forest and stream ([Forest and Stream Publishing Co.], 1894)

Forest and stream ([Forest and Stream Publishing Co.], 1896)

Forest and stream ([Forest and Stream Publishing Co.], 1900)

Forest and stream ([Forest and Stream Publishing Co.], 1901)

Forest and stream ([Forest and Stream Publishing Co.], 1906)

Forest and stream ([Forest and Stream Publishing Co.], 1909)

Forest and stream ([Forest and Stream Publishing Co.], 1914)

Forest and stream ([Forest and Stream Publishing Co.], 1919)

Forest habitat for mammals of the Northeast - Northeastern Forest Experiment Station (Radnor, Pa.) (Northeastern Forest Experiment Station and Eastern Region, Forest Service, 1981)

Forest life in Acadie : sketches of sport and natural history in the lower provinces of the Canadian Dominion - Hardy, Campbell, 1831 -1919 (Chapman & Hall, 1869)

Forest life in Acadie : Sketches of sport and natural history in the lower provinces of the Canadian dominion - Hardy, Campbell, 1831 -1919 (Chapman & Hall, 1869)

Forest life in Acadie : sketches of sport and natural history in the lower provinces of the Canadian dominion - Hardy, Campbell, 1831 -1919 (D. Appleton & Co, 1869)

Form und Formel im Tierreiche. Beiträge zu einer quantitativen Biologie I - XX - Przibram, Hans, 1874 -1944 (F. Deuticke, 1922)

Forms of animal life - Rolleston, George, 1829 -1881 (Clarendon Press, 1870)

Forms of animal life; being outlines of zoological classification based upon anatomical investigation and illustrated by descriptions of specimens and of figures - Rolleston, George, 1829 -1881 (Clarendon press, 1870)

Forms of animal life : a manual of comparative anatomy : with descriptions of selected types - Rolleston, George, 1829 -1881 (Clarendon Press, 1888)