Gaya APA

Review, H, B. (2016). Difficult Conversations (HBR 20-Minute Manager Series) (Cet. 1). United States of America: Harvard bussines Reiew Pres.

Gaya MLA

Review, Havard, Business. "Difficult Conversations (HBR 20-Minute Manager Series)". Cet. 1 United States of America: Harvard bussines Reiew Pres, 2016. Text.