Cita APA

Heilbroner, R. L. (1972). Economic problem (3rd ed.). Prentice-Hall of India.

Chicago Edition Citation

Heilbroner, Robert L. Economic Problem. 3rd ed. New Jersey: Prentice-Hall of India, 1972.

Cita MLA

Heilbroner, Robert L. Economic Problem. 3rd ed. Prentice-Hall of India, 1972.