Mansfield, E. (1979). Microeconomic problems: Case studies and exercises for review (3rd.). W.W. Norton & Co..
Lua i Stíl Chicago (17ú heag.)Mansfield, Edwin. Microeconomic Problems: Case Studies and Exercises for Review. 3rd. New York: W.W. Norton & Co., 1979.
Lua MLA (9ú heag.)Mansfield, Edwin. Microeconomic Problems: Case Studies and Exercises for Review. 3rd. W.W. Norton & Co., 1979.
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