Umaña, G. (2009). Comparison of basic limnological aspects of some crater lakes in the Cordillera Volcánica Central, Costa Rica.
Dyfyniad Arddull ChicagoUmaña, Gerardo. Comparison of Basic Limnological Aspects of Some Crater Lakes in the Cordillera Volcánica Central, Costa Rica. 2009.
Dyfyniad MLAUmaña, Gerardo. Comparison of Basic Limnological Aspects of Some Crater Lakes in the Cordillera Volcánica Central, Costa Rica. 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.