APA (7th ed.) Citation

Pryor, F. L. (1963). The Communist foreign trade system. M. I. T.

Chicago Style (17th ed.) Citation

Pryor, Frederic L. The Communist Foreign Trade System. Cambridge: M. I. T, 1963.

MLA (9th ed.) Citation

Pryor, Frederic L. The Communist Foreign Trade System. M. I. T, 1963.