APA

Whitman D., Gergacz J. W., Levin M. & Whitman D. (1992). The legal environment of business: regulatory law and contracts. New York: McGraw-Hill.

Chicago

Whitman Douglas, Gergacz John William, Levin Murray and Whitman Douglas. 1992. The legal environment of business: regulatory law and contracts. New York: McGraw-Hill.

Harvard

Whitman D., Gergacz J. W., Levin M. and Whitman D. (1992). The legal environment of business: regulatory law and contracts. New York: McGraw-Hill.

MLA

Whitman Douglas, Gergacz John William, Levin Murray and Whitman Douglas. The legal environment of business: regulatory law and contracts. New York: McGraw-Hill. 1992.