APA (7th ed.) Citation

Cook, R. C. (1969). The "brain drain": Fact or fiction. Population Reference Bureau.

Chicago Style (17th ed.) Citation

Cook, Robert C. The "Brain Drain": Fact or Fiction. Washington, DC: Population Reference Bureau, 1969.

MLA (9th ed.) Citation

Cook, Robert C. The "Brain Drain": Fact or Fiction. Population Reference Bureau, 1969.