Gaya APA
Marx, J., Gerhard, V, W. (2019).
Heroes: Inspirational People and the Amazing Jobs They Do .
London:
Jonny Marx, Gerhard Van Wyk.
Gaya MLA
Marx, Jonny., Gerhard, Van, Wyk,.
"Heroes: Inspirational People and the Amazing Jobs They Do".
London:
Jonny Marx, Gerhard Van Wyk,
2019.
Reference.