Cita APA

E. J. Barrington & Willis. J, A. (1977). Man and the biology arid zones. Universiyt park press.

Chicago Edition Citation

E. J. Barrington i Arthur Willis. J. Man and the Biology Arid Zones. London: Universiyt park press, 1977.

Cita MLA

E. J. Barrington i Arthur Willis. J. Man and the Biology Arid Zones. Universiyt park press, 1977.