APA (7th ed.) Citation

Abbott, R. T. (1989). Compendium of landshells: A color guide to more than 2,000 of the world's terrestrial shells. American Malacologists, Inc.

Chicago Style (17th ed.) Citation

Abbott, R. Tucker. Compendium of Landshells: A Color Guide to More than 2,000 of the World's Terrestrial Shells. Melbourne, Florida: American Malacologists, Inc, 1989.

MLA (9th ed.) Citation

Abbott, R. Tucker. Compendium of Landshells: A Color Guide to More than 2,000 of the World's Terrestrial Shells. American Malacologists, Inc, 1989.