Dyfyniad APA

Spruce, R., & Russel Wallace, A. (1908). Notes of a botanist on the Amazon & Andes (First edition.). Macmillan.

Dyfyniad Arddull Chicago

Spruce, Richard., and Alfred Russel Wallace. Notes of a Botanist on the Amazon & Andes. First edition. London: Macmillan, 1908.

Dyfyniad MLA

Spruce, Richard., and Alfred Russel Wallace. Notes of a Botanist on the Amazon & Andes. First edition. Macmillan, 1908.

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