Dyfyniad APA

Mena Arias, S. (1991). Preliminary growth charts of Gmelina arborea Roxb. Applicable to the dry Pacific, Costa Rica.

Dyfyniad Arddull Chicago

Mena Arias, Sergio. Preliminary Growth Charts of Gmelina Arborea Roxb. Applicable to the Dry Pacific, Costa Rica. 1991.

Dyfyniad MLA

Mena Arias, Sergio. Preliminary Growth Charts of Gmelina Arborea Roxb. Applicable to the Dry Pacific, Costa Rica. 1991.

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