APA (7th ed.) Citation

Powell, A. W. B. (1966). The Molluscan families Speightiidae and Turridae: An evaluation of the valid taxa, both recent and fossil, with lists of characteristic species. Auckland Institute and Museum.

Chicago Style (17th ed.) Citation

Powell, A. W. B. The Molluscan Families Speightiidae and Turridae: An Evaluation of the Valid Taxa, Both Recent and Fossil, with Lists of Characteristic Species. [Auckland]: Auckland Institute and Museum, 1966.

MLA (9th ed.) Citation

Powell, A. W. B. The Molluscan Families Speightiidae and Turridae: An Evaluation of the Valid Taxa, Both Recent and Fossil, with Lists of Characteristic Species. Auckland Institute and Museum, 1966.