APA (7th ed.) Citation

Berry, E. W. (1929). Larger Foraminifera of the Verdun formation of northwestern Peru. The Johns Hopkins Press.

Chicago Style (17th ed.) Citation

Berry, E. Willard. Larger Foraminifera of the Verdun Formation of Northwestern Peru. Baltimore: The Johns Hopkins Press, 1929.

MLA (8th ed.) Citation

Berry, E. Willard. Larger Foraminifera of the Verdun Formation of Northwestern Peru. The Johns Hopkins Press, 1929.