APA

Ubell V., Sumberg D., . (1982). Check lists: 88 essential lists to help you organize your life. New York: Crown Publishers.

Chicago

Ubell Vivian, Sumberg David, . 1982. Check lists: 88 essential lists to help you organize your life. New York: Crown Publishers.

Harvard

Ubell V., Sumberg D., . (1982). Check lists: 88 essential lists to help you organize your life. New York: Crown Publishers.

MLA

Ubell Vivian, Sumberg David, . Check lists: 88 essential lists to help you organize your life. New York: Crown Publishers. 1982.