APA (7th ed.) Citation

Stumm, E. C. (1967). Growth stages in the Middle Devonian rugose coral species Hexagonaria anna (Whitfield) from the Traverse Group of Michigan. Museum of Paleontology, University of Michigan.

Chicago Style (17th ed.) Citation

Stumm, Erwin Charles. Growth Stages in the Middle Devonian Rugose Coral Species Hexagonaria Anna (Whitfield) from the Traverse Group of Michigan. Ann Arbor: Museum of Paleontology, University of Michigan, 1967.

MLA (9th ed.) Citation

Stumm, Erwin Charles. Growth Stages in the Middle Devonian Rugose Coral Species Hexagonaria Anna (Whitfield) from the Traverse Group of Michigan. Museum of Paleontology, University of Michigan, 1967.