Gaya APA

Turnbull, H. (2001). Investing in People (How to Achieve Higher Standards and a Competitive Edge at Work) (-). Hongkong: Grolier Incorporated.

Gaya MLA

Turnbull, Harley. "Investing in People (How to Achieve Higher Standards and a Competitive Edge at Work)". - Hongkong: Grolier Incorporated, 2001. Book.