The Hong Kong company secretary's handbook
MLA
Cheng, Po Wah, Anna Heung Suet Sum, and Francis Kam Tim Yuen. The Hong Kong Company Secretary's Handbook : Practice and Procedure. 11th ed. Hong Kong: Pearson Education Asia Limited, 2021.
APA
Cheng, P. Wah, Sum, A. Heung Suet, & Yuen, F. Kam Tim. (2021). The Hong Kong company secretary's handbook : practice and procedure. 11th ed. Hong Kong: Pearson Education Asia Limited.
Chicago
Cheng, Po Wah., Anna Heung Suet Sum, and Francis Kam Tim Yuen. The Hong Kong Company Secretary's Handbook: Practice and Procedure. 11th ed. Hong Kong: Pearson Education Asia Limited, 2021.