APA Style
SELK, Jason. (2018).
Executive Toughness: The Mental-Training Program to Increase Your Leadership Performance (Cetakan ke- 1).
United States Of America:
McGrawHill Education.
Chicago Style
SELK, Jason.
Executive Toughness: The Mental-Training Program to Increase Your Leadership Performance.
Cetakan ke- 1
United States Of America:
McGrawHill Education,
2018.
Text.
MLA Style
SELK, Jason.
Executive Toughness: The Mental-Training Program to Increase Your Leadership Performance.
Cetakan ke- 1
United States Of America:
McGrawHill Education,
2018.
Text.
Turabian Style
SELK, Jason.
Executive Toughness: The Mental-Training Program to Increase Your Leadership Performance.
Cetakan ke- 1
United States Of America:
McGrawHill Education,
2018.
Print.