APA引文

Umaña, G. (2009). Comparison of basic limnological aspects of some crater lakes in the Cordillera Volcánica Central, Costa Rica.

Citación estilo Chicago

Umaña, Gerardo. Comparison of Basic Limnological Aspects of Some Crater Lakes in the Cordillera Volcánica Central, Costa Rica. 2009.

MLA引文

Umaña, Gerardo. Comparison of Basic Limnological Aspects of Some Crater Lakes in the Cordillera Volcánica Central, Costa Rica. 2009.

警告：這些引文格式不一定是100％准確.