Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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