APA citiranje

Cook, L. B. (1939). Using language power: Growth in using english. New York: Harcourt Brace and Company.

Παραπομπή Chicago Style

Cook, Luella B. Using Language Power: Growth in Using English. New York: Harcourt Brace and Company, 1939.

MLA citiranje

Cook, Luella B. Using Language Power: Growth in Using English. New York: Harcourt Brace and Company, 1939.