Cita APA

Whitwell, W. C., & Whitwell, W. C. (1963). Suggestion systems are profitable. Waterford Conn: National Foremens Institute.

Citación estilo Chicago

Whitwell, W. C., y W. C. Whitwell. Suggestion Systems Are Profitable. Waterford Conn: National Foremens Institute, 1963.

Cita MLA

Whitwell, W. C., y W. C. Whitwell. Suggestion Systems Are Profitable. Waterford Conn: National Foremens Institute, 1963.