APA (7th ed.) Citation

(1971). Poor's register of corporations, directors and executives, United States and Canada. Standard & Poor's Corp..

Chicago Style (17th ed.) Citation

Poor's Register of Corporations, Directors and Executives, United States and Canada. New York: Standard & Poor's Corp., 1971.

MLA (9th ed.) Citation

Poor's Register of Corporations, Directors and Executives, United States and Canada. Standard & Poor's Corp., 1971.