APA (7th ed.) Zitazioa

(1951). Index to plays in collections ; an author and title index to plays appearing in collections published between 1900 and 1950 / Pref. by George Freedley.

Chicago Style (17th ed.) Zitazioa

Index to Plays in Collections ; an Author and Title Index to Plays Appearing in Collections Published Between 1900 and 1950 / Pref. by George Freedley. 1951.

MLA (9th ed.) Zitazioa

Index to Plays in Collections ; an Author and Title Index to Plays Appearing in Collections Published Between 1900 and 1950 / Pref. by George Freedley. 1951.