APA-ийн эшлэл(7 дахь хэвлэлт)

Friedrichs, C. (2012). Seven simple tools to build a motivating work environment. Diplomica Verlag.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Friedrichs, Christian. Seven Simple Tools to Build a Motivating Work Environment. Hamburg: Diplomica Verlag, 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Friedrichs, Christian. Seven Simple Tools to Build a Motivating Work Environment. Diplomica Verlag, 2012.