Cita APA (7th ed.)

Schevill, W. E. (1974). The whale problem: A status report. Harvard University Press.

Cita Chicago (17th ed.)

Schevill, William E. The Whale Problem: A Status Report. Cambridge: Harvard University Press, 1974.

Cita MLA (9th ed.)

Schevill, William E. The Whale Problem: A Status Report. Harvard University Press, 1974.