APA (7th ed.) Citation

Vos, G. A. (1997). Threshold exposure assistant: A tool for safety and industrial hygiene. [publisher not identified].

Chicago Style (17th ed.) Citation

Vos, Gordon Alexander. Threshold Exposure Assistant: A Tool for Safety and Industrial Hygiene. [Place of publication not identified]: [publisher not identified], 1997.

MLA (9th ed.) Citation

Vos, Gordon Alexander. Threshold Exposure Assistant: A Tool for Safety and Industrial Hygiene. [publisher not identified], 1997.