APA (7th ed.) Citation

Wells, T. A. G. (1962). Invertebrate types: A practical guide. Heinemann Educational Book.

Chicago Style (17th ed.) Citation

Wells, Thomas A. G. Invertebrate Types: A Practical Guide. London: Heinemann Educational Book, 1962.

MLA (9th ed.) Citation

Wells, Thomas A. G. Invertebrate Types: A Practical Guide. Heinemann Educational Book, 1962.