A Bibliography of Psylla (Homoptera: Psyllidae) on pear trees.
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Contributions
- United States. Science and Education Administration. - Contributor
Publication
1981 - U.S. Dept. of Agriculture, Science and Education Administration, Washington, D.C, District of Columbia
Language
English
Word Count
3,250 words, Guess
Page Count
13 pages
Identifiers
- Internet ArchiveCAT82773488
- Library of Congress Control Number81603418
- Open LibraryOL3922039M
Classifications
- DDC016.634/13952
- LCCZ5858.P78 B5 1981
- LCCSB945.P78 B5 1981
Subjects
Topics
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