APA引文

Betancur, J. (2014). Review of the studies with microfossils in Costa Rica.

Citación estilo Chicago

Betancur, Julliet. Review of the Studies With Microfossils in Costa Rica. 2014.

MLA引文

Betancur, Julliet. Review of the Studies With Microfossils in Costa Rica. 2014.

警告：這些引文格式不一定是100％准確.