Cita APA

Williams, M., Stone, P., Siveter, D., & Taylor, P. (2001). Upper Ordovician ostracods from the Cautley district, northern England: Baltic and Laurentian affinities.

Citación estilo Chicago

Williams, M., P. Stone, D. Siveter, and P. Taylor. Upper Ordovician Ostracods from the Cautley District, Northern England: Baltic and Laurentian Affinities. 2001.

Cita MLA

Williams, M., et al. Upper Ordovician Ostracods from the Cautley District, Northern England: Baltic and Laurentian Affinities. 2001.