Cita APA

Pennak, R. W. (1953). Fresh-water invertebrates of the United States. Ronald Press Co.

Citación estilo Chicago

Pennak, Robert W. Fresh-water Invertebrates of the United States. New York: Ronald Press Co, 1953.

Cita MLA

Pennak, Robert W. Fresh-water Invertebrates of the United States. Ronald Press Co, 1953.

Warning: These citations may not always be 100% accurate.