APA (7th ed.) Citation

Ward, P., Kennedy, W., Macleod, K., & Mount, J. (1991). Ammonite and inoceramid bivalve extinction patterns in Cretaceous/Tertiary boundary sections of the Biscay region (southwestern France, northern Spain).

Chicago Style (17th ed.) Citation

Ward, P., W. Kennedy, K. Macleod, and J. Mount. Ammonite and Inoceramid Bivalve Extinction Patterns in Cretaceous/Tertiary Boundary Sections of the Biscay Region (southwestern France, Northern Spain). 1991.

MLA (9th ed.) Citation

Ward, P., et al. Ammonite and Inoceramid Bivalve Extinction Patterns in Cretaceous/Tertiary Boundary Sections of the Biscay Region (southwestern France, Northern Spain). 1991.