Analysis of experimental work with ground raw rock phosphate as a fertilizer
By: by W.H. Waggaman and C.R. Wagner ; assisted by R.F. Gardiner
Contributors: Wagner, Cary Richard, 1894-; Gardiner, R. F. (Robert Franklin), b. 1885
Series: Bulletin / United States Department of Agriculture -- no. 699; Bulletin of the U.S. Department of Agriculture -- no. 699.
Publisher: U.S. Dept. of Agriculture
Published: 1918
Place of publication: Washington, D.C
Language: eng
Number of pages: 119
Subjects: Phosphatic fertilizers; Phosphate rock
Notes: Caption title.

"October 16, 1918."