APA-referens (7:e uppl.)

Halcrow, H. G. (1980). Economics of agriculture. McGraw-Hill Book Company.

Chicago-referens (17:e uppl.)

Halcrow, Harold G. Economics of Agriculture. New York: McGraw-Hill Book Company, 1980.

MLA-referens (9:e uppl.)

Halcrow, Harold G. Economics of Agriculture. McGraw-Hill Book Company, 1980.