एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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