Dyfyniad APA

Jerram, D. (2011). Field description of igneous rocks (2nd ed.). Wiley-Blackwell.

Dyfyniad Arddull Chicago

Jerram, Dougal. Field Description of Igneous Rocks. 2nd ed. Sussex: Wiley-Blackwell, 2011.

Dyfyniad MLA

Jerram, Dougal. Field Description of Igneous Rocks. 2nd ed. Wiley-Blackwell, 2011.

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