Dyfyniad APA

Mathisen, M. E. (1981). Plio-Pleistocene geology of the central Cagayan Valley, northern Luzon, Philippines.

Dyfyniad Arddull Chicago

Mathisen, Mark Evan. Plio-Pleistocene Geology of the Central Cagayan Valley, Northern Luzon, Philippines. 1981.

Dyfyniad MLA

Mathisen, Mark Evan. Plio-Pleistocene Geology of the Central Cagayan Valley, Northern Luzon, Philippines. 1981.

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