- Farmer, L. J. 1965a. The phloem-yeast complex during infestations of the mountain pine beetle in lodgepole pine. Unpublished dissertation, University of Utah, Salt Lake City.
- Farmer, L. J. 1965b. The phloem-yeast complex during infestations of the mountain pine beetle in lodgepole pine . Dissertation Abstracts 26:1304-1305.