Cita APA (7th ed.)
Woolley, L. (1937). Digging up the past. Penguin Books.
Cita Chicago (17th ed.)
Woolley, Leonard. Digging Up the Past. Harmondsworth, Middlesex, U.K.: Penguin Books, 1937.
Cita MLA (9th ed.)
Woolley, Leonard. Digging Up the Past. Penguin Books, 1937.
Atenció: Aquestes cites poden no estar 100% correctes.