APA সাইটেশন

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

শিকাগো স্টাইলে সাইটেশন

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

এমএলএ সাইটেশন

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