Refine Your Search
Book List
3
-
World rubber production and trade : economic and technical aspects 1935-1939 / by C.A. Gehlsen.
- International institute of agriculture,
- 1940.
- Rome :
-
World trade in agricultural products : its growth; its crisis; and the new trade policies / by L.B. Bacon and F.C. Schloemer.
- International institute of agriculture,
- 1940.
- Rome :
-
A survey of insecticide materials of vegetable origin / ed. by H.J. Holman.
- Imperial institute. Plant and animal products department,
- 1940.
- London :