University of Guyana Library

Normal view MARC view ISBD view

Contours of change. - Washington, The Supt. of Docs., 1970. - xl, 366 p. 16pages of plates : ill., photos - (Its Yearbook of agriculture, 1970) .

Subjects--Topical Terms:
Agriculture--United States.

LC Class. No.: S21A35 / U55