APA (7th ed.) Citation

(1951). Who's who in commerce and industry (7th international ed.). A.N. Marquis.

Chicago Style (17th ed.) Citation

Who's Who in Commerce and Industry. 7th international ed. Chicago: A.N. Marquis, 1951.

MLA (9th ed.) Citation

Who's Who in Commerce and Industry. 7th international ed. A.N. Marquis, 1951.