Cita APA (7a ed.)

Gordon, J. (1978). Structures or why things don't fall down. Penguin Books.

Cita Chicago Style (17a ed.)

Gordon, J.E. Structures or Why Things Don't Fall Down. London: Penguin Books, 1978.

Cita MLA (9a ed.)

Gordon, J.E. Structures or Why Things Don't Fall Down. Penguin Books, 1978.