Cita APA

Heller, R. H. (1977). International trade theory and empirical evidence (2.).

Citación estilo Chicago

Heller, Robert H. International Trade Theory and Empirical Evidence. 2. Prentice-Hall of India Pvt Ltd, New Delhi, 1977.

Cita MLA

Heller, Robert H. International Trade Theory and Empirical Evidence. 2. 1977.