Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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