Gaya APA

Meckin, D. (2021). The 4 figure trick : How to deliver financial success in business with just 4 numbers . London: Nicholas Brealey Publishing.

Gaya MLA

Meckin, David. "The 4 figure trick : How to deliver financial success in business with just 4 numbers". London: Nicholas Brealey Publishing, 2021. Buku Teks.