APA (7th ed.) Citation

Nigrini, C., & Nitecki, M. H. (1968). Occurrence of Radiolaria in the Mississippian of Arkansas.

Chicago Style (17th ed.) Citation

Nigrini, Catherine, and Matthew H. Nitecki. Occurrence of Radiolaria in the Mississippian of Arkansas. Chicago, Ill, 1968.

MLA (9th ed.) Citation

Nigrini, Catherine, and Matthew H. Nitecki. Occurrence of Radiolaria in the Mississippian of Arkansas. 1968.

Warning: These citations may not always be 100% accurate.