APA (7th ed.) Citation

Personnel Institute, Inc. (1948). A handbook on how to hire, how to improve people. [publisher not identified].

Chicago Style (17th ed.) Citation

Personnel Institute, Inc. A Handbook on How to Hire, How to Improve People. [New York]: [publisher not identified], 1948.

MLA (9th ed.) Citation

Personnel Institute, Inc. A Handbook on How to Hire, How to Improve People. [publisher not identified], 1948.