APA citiranje

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.

MLA citiranje

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

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