TY - BOOK AU - Blakeslee,Leroy L. AU - Heady,Earl O. AU - Framingham,Charles F. TI - World food production, demand and trade SN - 0813818001 U1 - 338.19 PY - 1973/// CY - Ames PB - Iowa State University Press KW - Food supply KW - Agriculture N1 - Includes index ER -