Παραπομπή APA

Macginitie, N., & Macginitie, G. E. (1949). Natural history of marine animals. McGraw hill.

Παραπομπή Chicago Style

Macginitie, Nettie, και G. E. Macginitie. Natural History of Marine Animals. London: McGraw hill, 1949.

Παραπομπή MLA

Macginitie, Nettie, και G. E. Macginitie. Natural History of Marine Animals. McGraw hill, 1949.