Gaya APA
Knaap, J., Zeratsky, J. (2018).
Make time how to focus on what matters every day .
United States of Amerika:
currency.
Gaya MLA
Knaap, Jake., Zeratsky, John.
"Make time how to focus on what matters every day".
United States of Amerika:
currency,
2018.
Sekretari D3.