APA (7th ed.) Citation

Heilbroner, R. L. (1990). The economic problem (9th ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Heilbroner, Robert L. The Economic Problem. 9th ed. Englewood Cliffs, N.J: Prentice-Hall, 1990.

MLA (9th ed.) Citation

Heilbroner, Robert L. The Economic Problem. 9th ed. Prentice-Hall, 1990.