APA (7th ed.) Citation

Sia, S. H. (1984). Business firms and companies. Times Books International.

Chicago Style (17th ed.) Citation

Sia, Suat Hwa. Business Firms and Companies. Singapore: Times Books International, 1984.

MLA (9th ed.) Citation

Sia, Suat Hwa. Business Firms and Companies. Times Books International, 1984.