APA (7th ed.) Citation

Collis, M. (1960). Nancy Astor, an informal biography ([1st ed.].). Dutton.

Chicago Style (17th ed.) Citation

Collis, Maurice. Nancy Astor, an Informal Biography. [1st ed.]. New York: Dutton, 1960.

MLA (9th ed.) Citation

Collis, Maurice. Nancy Astor, an Informal Biography. [1st ed.]. Dutton, 1960.