Gaya APA

Halcrow, H, G. et al (1994). Economics of resources, agriculture, and food / Wesley D. Setz, Gerald C. Nelson, Harold G. Halcrow . New York: McGraw-Hill.

Gaya MLA

Halcrow, Harold, G.. et al. "Economics of resources, agriculture, and food / Wesley D. Setz, Gerald C. Nelson, Harold G. Halcrow". New York: McGraw-Hill, 1994. Skripsi.