The effect of tree nitrogen on pear psylla, Psylla pyricola Foerster

An edition of The effect of tree nitrogen on pear psylla, Psylla pyricola Foerster (1982)

The effect of tree nitrogen on pear psylla, Psylla pyricola Foerster

By Douglas Goode Pfeiffer

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Publish Date

1982

Publisher

Language

eng

Pages

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