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An analysis of pear psylla populations 1977-79.

APA Citation

Fye, R. E. (Robert Eaton)., United States. Science and Education Administration. Agricultural Research. Western Region. (1981). An analysis of pear psylla populations 1977-79. Oakland, Calif.: Agricultural Research, Western Region, Science and Education Administration, U.S. Dept. of Agriculture.

MLA Citation

Fye, R. E. (Robert Eaton), 1924-, and United States. Science and Education Administration. Agricultural Research. Western Region. An Analysis of Pear Psylla Populations 1977-79. Oakland, Calif.: Agricultural Research, Western Region, Science and Education Administration, U.S. Dept. of Agriculture, 1981.

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