Dyfyniad APA

Ballestero, D. (2003). Study of the Layer of Sediment in the San Juan River.

Dyfyniad Arddull Chicago

Ballestero, Daniel. Study of the Layer of Sediment in the San Juan River. 2003.

Dyfyniad MLA

Ballestero, Daniel. Study of the Layer of Sediment in the San Juan River. 2003.

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