Gaya APA
Wahl, Erik. (2017).
The spark and the grind: ignite the power of disciplined creativity .
New York:
Portfolio Penguin.
Gaya Chicago
Wahl, Erik.
The spark and the grind: ignite the power of disciplined creativity.
New York:
Portfolio Penguin,
2017.
Text.
Gaya MLA
Wahl, Erik.
The spark and the grind: ignite the power of disciplined creativity.
New York:
Portfolio Penguin,
2017.
Text.
Gaya Turabian
Wahl, Erik.
The spark and the grind: ignite the power of disciplined creativity.
New York:
Portfolio Penguin,
2017.
Print.