Cita APA

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

Citación estilo Chicago

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

Cita MLA

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