Licenses for creameries and testers
Gregory, H.W.
Licenses for creameries and testers - U.S.A. 1929 - 1-22 p. - Cream Purdue Agricultural Experimental Station. Circular No. 41 .
Licenses for creameries and testers - U.S.A. 1929 - 1-22 p. - Cream Purdue Agricultural Experimental Station. Circular No. 41 .