Thomas, M. (1998). A new attitude: Achieving personal and professional success by keeping a positive mental outlook. Career Press.
Chicago-Zitierstil (17. Ausg.)Thomas, Marian. A New Attitude: Achieving Personal and Professional Success by Keeping a Positive Mental Outlook. Franklin Lakes, N.J: Career Press, 1998.
MLA-Zitierstil (9. Ausg.)Thomas, Marian. A New Attitude: Achieving Personal and Professional Success by Keeping a Positive Mental Outlook. Career Press, 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.