APA

Irwin R., . (1985). Computerizing your real estate office. New York: McGraw-Hill.

Chicago

Irwin Robert, . 1985. Computerizing your real estate office. New York: McGraw-Hill.

Harvard

Irwin R., . (1985). Computerizing your real estate office. New York: McGraw-Hill.

MLA

Irwin Robert, . Computerizing your real estate office. New York: McGraw-Hill. 1985.