APA استشهاد

Allen, R. W. (1976). Industrial hygiene. Prentice-Hall of India.

استشهاد بنمط شيكاغو

Allen, Richard W. Industrial Hygiene. New Jersey: Prentice-Hall of India, 1976.

MLA استشهاد

Allen, Richard W. Industrial Hygiene. Prentice-Hall of India, 1976.