by Paul R. Enrlich | Anne H. Enrlich.
by Mazur, Allen | Robertson, Leon S.
by Maarten J Chrispeels | David Sadava.
by Gurnther S Stent | .
by Cohn ,Norman S | .
by Kirk , John T O | .
by Aaron N. Moen | .
by Committee, American Phytopathological Society | .
by Newcomb, Eldon H | .
by Robert M Page | .
by C L Porter | .
by Daniel Altman Roberts | .
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