A generic classification of California aphids by means of first instar nymphs:
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Bibliographic Details
Main Author: Sampson, Wilson (Author)
Format: Book
Language:English
Published: Berkeley [u.a.] Univ. of California Press 1946
Series:University of California <Berkeley, Calif.>: University of California publications in entomology 7,12
Subjects:
Physical Description:S. 365 - 402 Ill.

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