Dyfyniad APA

(1974). Chemical analysis of ecological materials. Oxford: Blackwell Scientific Publication.

Dyfyniad Arddull Chicago

Chemical Analysis of Ecological Materials. Oxford: Blackwell Scientific Publication, 1974.

Dyfyniad MLA

Chemical Analysis of Ecological Materials. Oxford: Blackwell Scientific Publication, 1974.

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