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.