APA ציטוט

Wo Phoon. (1983). Practical occupational health. Singapore: P.G. Publishing Pte Ltd.

Trích dẫn kiểu Chicago

Wo Phoon. Practical Occupational Health. Singapore: P.G. Publishing Pte Ltd, 1983.

ציטוט MLA

Wo Phoon. Practical Occupational Health. Singapore: P.G. Publishing Pte Ltd, 1983.