APA

Birkett G. A., . (1959). A modern Russian course. New York: Oxford University Press.

Chicago

Birkett G A, . 1959. A modern Russian course. New York: Oxford University Press.

Harvard

Birkett G. A., . (1959). A modern Russian course. New York: Oxford University Press.

MLA

Birkett G A, . A modern Russian course. New York: Oxford University Press. 1959.