Science for better living. - [Washington, For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1968] - xlvi, 386 p. illus. (part col.) ports. 24 cm. - Its Yearbook of agriculture, 1968 . - Yearbook of agriculture (Washington, D.C. : 1926) ; 1968. .

Includes bibliographies.

agr68000301


Agriculture--Research.

S21 / .A35 1968

630/.72/073

1Ag84Y 1968