The Magpie in relation to agriculture /
Kalmbach, E. R.
The Magpie in relation to agriculture / E. R. Kalmbach - Washington : Government printing Office, 1927 - 30 p. : ill. ; 26 cm - Technical bulletin. U.S. Department of agriculture ; n. 24 .
The Magpie in relation to agriculture / E. R. Kalmbach - Washington : Government printing Office, 1927 - 30 p. : ill. ; 26 cm - Technical bulletin. U.S. Department of agriculture ; n. 24 .