Why a duck? Visual and verbal gems from the Marx Brothers' movies / introd. by Groucho Marx; ed. by Richard J. Anobile.

MLA

Anobile, Richard J, and Groucho Marx. Why a Duck? Visual and Verbal Gems From the Marx Brothers' Movies / Introd. by Groucho Marx; Ed. by Richard J. Anobile. London, 1980.

APA

Anobile, R. J, & Marx, G. (1980). Why a duck? Visual and verbal gems from the Marx Brothers' movies / introd. by Groucho Marx; ed. by Richard J. Anobile. London.

Chicago

Anobile, Richard J., and Groucho Marx. Why a Duck? Visual and Verbal Gems From the Marx Brothers' Movies / Introd. by Groucho Marx; Ed. by Richard J. Anobile. London, 1980.