APA

Irwin R., . (1983). Timeshare properties: what every buyer must know!. New York: McGraw-Hill.

Chicago

Irwin Robert, . 1983. Timeshare properties: what every buyer must know!. New York: McGraw-Hill.

Harvard

Irwin R., . (1983). Timeshare properties: what every buyer must know!. New York: McGraw-Hill.

MLA

Irwin Robert, . Timeshare properties: what every buyer must know!. New York: McGraw-Hill. 1983.