APA

Cassidy F., . (1949). Modern American Plays. Longmans: s.n.

Chicago

Cassidy F.G, . 1949. Modern American Plays. Longmans: s.n.

Harvard

Cassidy F., . (1949). Modern American Plays. Longmans: s.n.

MLA

Cassidy F.G, . Modern American Plays. Longmans: s.n. 1949.