Cita APA (7th ed.)

Edwards, I. (1972). The Pyramids of Egypt. Penguin.

Cita Chicago (17th ed.)

Edwards, I.E.S. The Pyramids of Egypt. Harmonds-worth: Penguin, 1972.

Cita MLA (9th ed.)

Edwards, I.E.S. The Pyramids of Egypt. Penguin, 1972.