Dyfyniad APA

Kanfer, S., & Marx, G. (2008). The essential Groucho: Writings by, for and about Groucho Marx. Penguin.

Dyfyniad Arddull Chicago

Kanfer, Stefan, and Groucho Marx. The Essential Groucho: Writings by, for and About Groucho Marx. London: Penguin, 2008.

Dyfyniad MLA

Kanfer, Stefan, and Groucho Marx. The Essential Groucho: Writings by, for and About Groucho Marx. Penguin, 2008.

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