List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1931)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1984)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1985)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1987)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1980)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1983)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1986)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1982)

Locoweed disease of sheep - Marshall, Harry Taylor, 1875 -1929 (University of Virginia, 1914)

Lonchocarpus species (Barbasco, Cube, Haiari, Nekoe, and Timbo) used as insecticides - Roark, R. C. (Ruric Creegan) (U.S. Dept. of Agriculture, Bureau of Entomology and Plant Quarantine, Division of Insecticide Investigations, 1936)

London Naturalist - London Natural History Society. (London Natural History Society, 1994)

London Naturalist - London Natural History Society. (London Natural History Society, 1996)

London Naturalist - London Natural History Society. (London Natural History Society, 1999)