APA (7th ed.) Citation

Andrews, J. T., Opdyke, N. D., & Channell, J. E. T. (1998). Magnetic Stratigraphy. Arctic and Alpine Research, 30(4), 421.

Chicago Style (17th ed.) Citation

Andrews, John T., Neil D. Opdyke, and James E. T. Channell. "Magnetic Stratigraphy." Arctic and Alpine Research 30, no. 4 (1998): 421.

MLA (9th ed.) Citation

Andrews, John T., et al. "Magnetic Stratigraphy." Arctic and Alpine Research, vol. 30, no. 4, 1998, p. 421.