Smithsonian Institution. (1921). Fossil crinoid genus Dolatocrinus and its allies. GPO.
Chicago Style (17th ed.) CitationSmithsonian Institution. Fossil Crinoid Genus Dolatocrinus and Its Allies. [Washington]: GPO, 1921.
MLA (9th ed.) CitationSmithsonian Institution. Fossil Crinoid Genus Dolatocrinus and Its Allies. GPO, 1921.
Warning: These citations may not always be 100% accurate.