APA
Prentice-Hall. Editorial Staff, Prentice-Hall. Editorial Staff, . (1955). Director's and officers' encyclopedic manual. New York: Prentice-Hall Inc.
Chicago
Prentice-Hall. Editorial Staff, Prentice-Hall. Editorial Staff, . 1955. Director's and officers' encyclopedic manual. New York: Prentice-Hall Inc.
Harvard
Prentice-Hall. Editorial Staff, Prentice-Hall. Editorial Staff, . (1955). Director's and officers' encyclopedic manual. New York: Prentice-Hall Inc.
MLA
Prentice-Hall. Editorial Staff, Prentice-Hall. Editorial Staff, . Director's and officers' encyclopedic manual. New York: Prentice-Hall Inc. 1955.
