APA (7th ed.) Citation

Caves, R. E. (1980). Trade and economic strcture: Models and methods. mass harvard.

Chicago Style (17th ed.) Citation

Caves, Richard E. Trade and Economic Strcture: Models and Methods. cambridge: mass harvard, 1980.

MLA (9th ed.) Citation

Caves, Richard E. Trade and Economic Strcture: Models and Methods. mass harvard, 1980.