RUNCORN, S. (1962). Continental drift. Academic Pr..
Cita Chicago (17th ed.)RUNCORN, S.K. Continental Drift. New York: Academic Pr., 1962.
Cita MLA (9th ed.)RUNCORN, S.K. Continental Drift. Academic Pr., 1962.
Atenció: Aquestes cites poden no estar 100% correctes.