Manganese as a fertilizer.
By: By M.X. Sullivan and W.O. Robinson ...
Contributors: Robinson, W. O. b. 1884.
Series: United States. Dept. of Agriculture. Bureau of Soils. Circular -- no. 75
Publisher: Govt. print. off.]
Published: 1913
Place of publication: [Washington
Subjects: Manganese as a fertilizer.