Cita APA (7th ed.)
Friedrichs, C. (2012). Seven simple tools to build a motivating work environment. Diplomica Verlag.
Cita Chicago (17th ed.)
Friedrichs, Christian. Seven Simple Tools to Build a Motivating Work Environment. Hamburg: Diplomica Verlag, 2012.
Cita MLA (9th ed.)
Friedrichs, Christian. Seven Simple Tools to Build a Motivating Work Environment. Diplomica Verlag, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.