Cita APA (7th ed.)

Sparks, D. K., Hoare, R. D., & Kesling, R. V. (1980). Epizoans on the brachiopod Paraspirifer bownockeri (Stewart) from the Middle Devonian of Ohio. D.K. Sparks.

Cita Chicago (17th ed.)

Sparks, Diane K., Richard David Hoare, i Robert V. Kesling. Epizoans on the Brachiopod Paraspirifer Bownockeri (Stewart) from the Middle Devonian of Ohio. [Ann Arbor, Mich.?]: D.K. Sparks, 1980.

Cita MLA (9th ed.)

Sparks, Diane K., et al. Epizoans on the Brachiopod Paraspirifer Bownockeri (Stewart) from the Middle Devonian of Ohio. D.K. Sparks, 1980.