APA (7th ed.) Citation

Gray, P. A. . [. .. (1991). Open systems: A business strategy for the 1990s. McGraw-Hill.

Chicago Style (17th ed.) Citation

Gray, Pamela A. []. Open Systems: A Business Strategy for the 1990s. London ; New York: McGraw-Hill, 1991.

MLA (9th ed.) Citation

Gray, Pamela A. []. Open Systems: A Business Strategy for the 1990s. McGraw-Hill, 1991.