Dyfyniad APA

Soto, G. J. (2011). Country annual report from Costa Rica (2011) to the International Commission on the History of Geological Sciences (INHIGEO).

Dyfyniad Arddull Chicago

Soto, Gerardo J. Country Annual Report From Costa Rica (2011) to the International Commission On the History of Geological Sciences (INHIGEO). 2011.

Dyfyniad MLA

Soto, Gerardo J. Country Annual Report From Costa Rica (2011) to the International Commission On the History of Geological Sciences (INHIGEO). 2011.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.