APA (7th ed.) Citation

Knoll, A. H., & Simonson, B. (1981). Early proterozoic microfossils and penecontem-poraneous quartz cementation in the Sokoman iron formation, Canada. Science, 211, 478.

Chicago Style (17th ed.) Citation

Knoll, A. H., and B. Simonson. "Early Proterozoic Microfossils and Penecontem-poraneous Quartz Cementation in the Sokoman Iron Formation, Canada." Science 211 (1981): 478.

MLA (9th ed.) Citation

Knoll, A. H., and B. Simonson. "Early Proterozoic Microfossils and Penecontem-poraneous Quartz Cementation in the Sokoman Iron Formation, Canada." Science, vol. 211, 1981, p. 478.