Cita APA (7a ed.)

Mara, D. D., & Cairncross, S. (1989). Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture: Measures for public health protection. World Health Organization.

Cita Chicago Style (17a ed.)

Mara, D. Duncan, y Sandy Cairncross. Guidelines for the Safe Use of Wastewater and Excreta in Agriculture and Aquaculture: Measures for Public Health Protection. Geneva: World Health Organization, 1989.

Cita MLA (9a ed.)

Mara, D. Duncan, y Sandy Cairncross. Guidelines for the Safe Use of Wastewater and Excreta in Agriculture and Aquaculture: Measures for Public Health Protection. World Health Organization, 1989.