APA

Keith L. A., Gubellini C. E., . (1971). Introduction to business enterprise. New York: McGraw-Hill.

Chicago

Keith Lyman A, Gubellini Carlo E, . 1971. Introduction to business enterprise. New York: McGraw-Hill.

Harvard

Keith L. A., Gubellini C. E., . (1971). Introduction to business enterprise. New York: McGraw-Hill.

MLA

Keith Lyman A, Gubellini Carlo E, . Introduction to business enterprise. New York: McGraw-Hill. 1971.