APA (7th ed.) Citation

World Health Organization, Geneva, United Nationas Environment Programme, & International Labour Organization. (1992). Environmental health criteria 138: 2 - nitropropane. World Health Organization.

Chicago Style (17th ed.) Citation

World Health Organization, Geneva, United Nationas Environment Programme, and International Labour Organization. Environmental Health Criteria 138: 2 - Nitropropane. Geneva: World Health Organization, 1992.

MLA (8th ed.) Citation

World Health Organization, Geneva, et al. Environmental Health Criteria 138: 2 - Nitropropane. World Health Organization, 1992.