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  1. Report of the commissioner appointed to investigate the prevalence of Trypeta ludens in Mexico. Districts affected by the orange worm. Nature, habits, and extension of the pest. Methods adopted for its control. Danger to be apprehended from its introduction, etc.
    By: California. - Isaac, John.
    Publication info: Sacramento,W. W. Shannon, superintendent state printing,1905.
    Contributed by: Library of Congress
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  2. Bug vs. bug: nature's method of controlling injurious species, by John Isaac ...
    By: Isaac, John. - California.
    Publication info: Sacramento,W.W. Shannon, Supt. State Printing,1906.
    Contributed by: University of California Libraries (archive.org)
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  3. Entomology in outline / compiled for the use of county horticultural commissioners and fruit-growers by John Isaac.
    By: Isaac, John. - California.
    Publication info: Sacramento :W.W. Shannon, Supt. State Print.,1906.
    Contributed by: University of California Libraries (archive.org)
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  4. Bug vs. bug: nature's method of controlling injurious species, by John Isaac ...
    By: Isaac, John. - California.
    Publication info: Sacramento,W.W. Shannon, Supt. State Printing,1906.
    Contributed by: Library of Congress
    View Book