Cita APA (7th ed.)

PRYOR, F. L. (1963). Communist foreign trade system. Allen & Unwin.

Cita Chicago (17th ed.)

PRYOR, Frederic L. Communist Foreign Trade System. London: Allen & Unwin, 1963.

Cita MLA (9th ed.)

PRYOR, Frederic L. Communist Foreign Trade System. Allen & Unwin, 1963.