APA Citatie

Johnson, M. B., & Johnson, T. L. (1994). Study guide to accompany: Seitz, Nelson, Harcrow, Economics of resources, agriculture, and food. New York: McGraw-Hill.

Chicago Style citaat

Johnson, Marvin B., en Tera L. Johnson. Study Guide to Accompany: Seitz, Nelson, Harcrow, Economics of Resources, Agriculture, and Food. New York: McGraw-Hill, 1994.

MLA citatie

Johnson, Marvin B., en Tera L. Johnson. Study Guide to Accompany: Seitz, Nelson, Harcrow, Economics of Resources, Agriculture, and Food. New York: McGraw-Hill, 1994.