Cita APA (7th ed.)

Gordon, J. E. (1978). Structures: Or, Why things don't fall down. Penquin Books.

Cita Chicago (17th ed.)

Gordon, J. E. Structures: Or, Why Things Don't Fall Down. Harmondsworth, New York: Penquin Books, 1978.

Cita MLA (9th ed.)

Gordon, J. E. Structures: Or, Why Things Don't Fall Down. Penquin Books, 1978.