Pollination and fruit set of pear
By: [prepared by R.L. Stebbins, W.M. Mellenthin, and P.B. Lombard].
Contributors: Mellenthin, Walter M., 1920-; Lombard, P. B.; Oregon State University. Extension Service.
Series: Extension circular / Oregon State University Extension Service -- 986.; Extension circular (Oregon State University. Extension Service) -- 986.
Publisher: Extension Service, Oregon State University
Published: 1979
Place of publication: Corvallis, Or
Language: eng
Subjects: Pear -- Pollination.; Fruit -- Development.
Notes: Title from caption.

"October 1979."