Treacy, D. (1993). Successful time management in a week. Hodder & Stoughton.
Cita Chicago (17th ed.)Treacy, Declan. Successful Time Management in a Week. London: Hodder & Stoughton, 1993.
Cita MLA (8th ed.)Treacy, Declan. Successful Time Management in a Week. Hodder & Stoughton, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.