Gaya APA

Thurow, L, C., Heilbroner, R, L. (1981). The economic problem : Robert L. Heilbroner, Lester C. Thurow (Ed.ke-6). Englewood Cliffs: Prentice-Hall International.

Gaya MLA

Thurow, Lester, C.., Heilbroner, Robert, L.. "The economic problem : Robert L. Heilbroner, Lester C. Thurow". Ed.ke-6 Englewood Cliffs: Prentice-Hall International, 1981. Textbook.