Worthless fertilizers
By: John S. Burd
Series: Circular / University of California, College of Agriculture, Agricultural Experiment Station -- no. 56; Circular (California Agricultural Experiment Station) -- 56.
Publisher: University of California, College of Agriculture, Agricultural Experiment Station
Published: 1910
Place of publication: Berkeley, Calif
Language: eng
Subjects: Fertilizers
Notes: Caption title.

"August, 1910."