APA
Halcrow H. G., . (1980). Economics of agriculture. New York: McGraw-Hill.
Chicago
Halcrow Harold G, . 1980. Economics of agriculture. New York: McGraw-Hill.
Harvard
Halcrow H. G., . (1980). Economics of agriculture. New York: McGraw-Hill.
MLA
Halcrow Harold G, . Economics of agriculture. New York: McGraw-Hill. 1980.