APA (7th ed.) Citation

Williford, K., Ward, P., Garrison, G., & Buick, R. (2007). An extended organic carbon-isotope record across the Triassic–Jurassic boundary in the Queen Charlotte Islands, British Columbia, Canada. Elsevier Science BV.

Chicago Style (17th ed.) Citation

Williford, Kenneth, P. Ward, G. Garrison, and R. Buick. An Extended Organic Carbon-isotope Record Across the Triassic–Jurassic Boundary in the Queen Charlotte Islands, British Columbia, Canada. Elsevier Science BV, 2007.

MLA (9th ed.) Citation

Williford, Kenneth, et al. An Extended Organic Carbon-isotope Record Across the Triassic–Jurassic Boundary in the Queen Charlotte Islands, British Columbia, Canada. Elsevier Science BV, 2007.