Não informado. (1922). Harvard Business School Bulletin. Harvard Business School.
Chicago-Zitierstil (17. Ausg.)Não informado. Harvard Business School Bulletin. Boston, Mass: Harvard Business School, 1922.
MLA-Zitierstil (8. Ausg.)Não informado. Harvard Business School Bulletin. Harvard Business School, 1922.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.