APA Edition Citation

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.

MLA Edition Citation

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

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