Thirtieth annual report
Subtitle: for the year ending June 30, 1920.
Series: Bulletin / State College of Washington. Agricultural Experiment Station -- no. 158.; Bulletin (State College of Washington. Agricultural Experiment Station) -- no. 158.
Publisher: State College of Washington, Agricultural Experiment Station
Published: 1920
Place of publication: Pullman, Wash
Language: eng
Number of pages: 47
Subjects: State College of Washington. -- Agricultural Experiment Station; Agricultural experiment stations -- Washington (State)
Notes: Cover title.