Mason, R. E., Rath, P. M., & Ross, H. L. (1980). Marketing practices and principles (3rd ed.). Gregg Division/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Mason, Ralph E., Patricia Mink Rath, agus Herbert L. Ross. Marketing Practices and Principles. 3rd ed. New York: Gregg Division/McGraw-Hill, 1980.
Lua MLA (9ú heag.)Mason, Ralph E., et al. Marketing Practices and Principles. 3rd ed. Gregg Division/McGraw-Hill, 1980.
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