APA

Verbit G. P., . (1969). Trade agreements for developing countries. New York: Columbia University Press.

Chicago

Verbit Gilbert P, . 1969. Trade agreements for developing countries. New York: Columbia University Press.

Harvard

Verbit G. P., . (1969). Trade agreements for developing countries. New York: Columbia University Press.

MLA

Verbit Gilbert P, . Trade agreements for developing countries. New York: Columbia University Press. 1969.