Gaya APA
Voss, C. (2016).
Never split the difference: negotiating as if your life depended on it (Cetakan Pertama).
United State:
HARPER COLLIN.
Gaya MLA
Voss, Chris.
"Never split the difference: negotiating as if your life depended on it".
Cetakan Pertama
United State:
HARPER COLLIN,
2016.
Text.