Lakein, A. (1973). How to get control of your time and your life. Signet Book.
Citazione stile Chigago Style (17a edizione)Lakein, Alan. How to Get Control of Your Time and Your Life. New York: Signet Book, 1973.
Citatione MLA (9a ed.)Lakein, Alan. How to Get Control of Your Time and Your Life. Signet Book, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.