 | Host-parasite relationships. | (3) |
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 | Pathogenic specialization in cereal rust fungi, especially Puccinia recondita f. sp. tritici : concepts, methods of study, and application / . Browder, L. E. 4n Washington : U.S. Dept. of Agriculture, 1971. | |
| Population density relationships between hymenopterous parasites and their aphid hosts : a theoretical study / . Knipling, E. F. 1n Washington : U.S. Dept. of Agriculture, 1971. | |
| Fleas (Siphonaptera) of Alabama and their host relationships / . Sanford, L. G., 1930- Auburn, Ala. : Agricultural Experiment Station, Auburn University, 1974. | |
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