Critical temperatures for blossom buds
Subtitle: pears
By: [by James K. Ballard, E.L. Proebsting and Ronald B. Tukey].
Contributors: Tukey, Ronald B.; Proebsting, E. L.; Washington State University. Cooperative Extension.
Series: Extension bulletin -- 0978.; Extension bulletin (Washington State University. Cooperative Extension) -- 978.
Publisher: Cooperative Extension, College of Agriculture, Washington State University
Published: 1981
Place of publication: Pullman, Wash
Language: eng
Subjects: Pear -- Washington (State); Fruit-culture -- Washington (State)
Other titles: Pears.
Notes: Caption title.

"October 1981"--P. [2].