APA citiranje

Gordon, J. E. (1978). Structures or why things dont's fall down. New York: Penguin Books.

Trích dẫn kiểu Chicago

Gordon, J. E. Structures or Why Things Dont's Fall Down. New York: Penguin Books, 1978.

MLA citiranje

Gordon, J. E. Structures or Why Things Dont's Fall Down. New York: Penguin Books, 1978.