APA (7th ed.) Citation

Tudor, J. (1987). Macmillan directory of business information sources. Macmillan.

Chicago Style (17th ed.) Citation

Tudor, James. Macmillan Directory of Business Information Sources. London: Macmillan, 1987.

MLA (8th ed.) Citation

Tudor, James. Macmillan Directory of Business Information Sources. Macmillan, 1987.

Warning: These citations may not always be 100% accurate.