Cita APA

Barrington. (1965). The biology of hemichordata and protochordata (4th ed.). Freeman.

Chicago Edition Citation

Barrington. The Biology of Hemichordata and Protochordata. 4th ed. Freeman, 1965.

Cita MLA

Barrington. The Biology of Hemichordata and Protochordata. 4th ed. Freeman, 1965.

Atenció: Aquestes cites poden no estar 100% correctes.