APA (7th ed.) Citation

Richardson, E. S. (1950). A Middle Devonian octactinellid sponge from New York. Chicago Natural History Museum.

Chicago Style (17th ed.) Citation

Richardson, Eugene Stanley. A Middle Devonian Octactinellid Sponge from New York. [Chicago]: Chicago Natural History Museum, 1950.

MLA (9th ed.) Citation

Richardson, Eugene Stanley. A Middle Devonian Octactinellid Sponge from New York. Chicago Natural History Museum, 1950.