APA Edition Citation

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

Chicago Edition Citation

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

MLA Edition Citation

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

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