Cita APA

Westermann, G. E. G., & Riccardi, A. C. (1980). The Upper Bajocian ammonite Strenoceras in Chile: First circum-Pacific record of the subfurcatum Zone. Web

Citación estilo Chicago

Westermann, G. E. G., and Alberto Carlos Riccardi. The Upper Bajocian Ammonite Strenoceras in Chile: First Circum-Pacific Record of the Subfurcatum Zone. 1980.

Cita MLA

Westermann, G. E. G., and Alberto Carlos Riccardi. The Upper Bajocian Ammonite Strenoceras in Chile: First Circum-Pacific Record of the Subfurcatum Zone. 1980.