APA Citation

Feiffer, J. (1976). Knock knock: A comedy in three acts. London: Samuel French, Inc..

Chicago Style Citation

Feiffer, Jules. Knock Knock: A Comedy in Three Acts. London: Samuel French, Inc., 1976.

MLA Citation

Feiffer, Jules. Knock Knock: A Comedy in Three Acts. London: Samuel French, Inc., 1976.

Warning: These citations may not always be 100% accurate.