Dyfyniad APA

Raby, P. (2001). Alfred russel wallace: Life. Princeton University Press.

Dyfyniad Arddull Chicago

Raby, Peter. Alfred Russel Wallace: Life. Princeton: Princeton University Press, 2001.

Dyfyniad MLA

Raby, Peter. Alfred Russel Wallace: Life. Princeton University Press, 2001.

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