APA (7th ed.) Citation

Richardson, E. S. (1954). Note on an Eocene crab: Harpactocarcinus mississippiensis Rathbun. Chicago Natural History Museum.

Chicago Style (17th ed.) Citation

Richardson, Eugene Stanley. Note on an Eocene Crab: Harpactocarcinus Mississippiensis Rathbun. [Chicago]: Chicago Natural History Museum, 1954.

MLA (9th ed.) Citation

Richardson, Eugene Stanley. Note on an Eocene Crab: Harpactocarcinus Mississippiensis Rathbun. Chicago Natural History Museum, 1954.