Motion pictures of the U. S. Department of Agriculture 1920-
- [Washington, U. S. Govt. Print. Off.] [n.d.]
- v. illus. 22 x 10-23 cm.
- United States. Department of Agriculture. Department circular no. 114 [etc.] United States. Department of Agriculture. Miscellaneous circular no. 27 [etc.] United States. Department of Agriculture. Miscellaneous publication United States. Department of Agriculture. Agriculture handbook ; no. 14. .