APA aipamena

Helen, Helen Mellanby, & Helen Mellanby. (1953). Animal life in freshwater (5.). London.

Chicago Style aipamena

Helen, Helen Mellanby, and Helen Mellanby. Animal Life in Freshwater. 5. London, 1953.

MLA aipamena

Helen, et al. Animal Life in Freshwater. 5. London, 1953.