APA
World Health Organization & SEARO Regional Health Papers No.4, . (1984). Low-cost water supply and sanitation technology. World Health Organization, New Delhi: .
Chicago
World Health Organization & SEARO Regional Health Papers No.4, . 1984. Low-cost water supply and sanitation technology. World Health Organization, New Delhi: .
Harvard
World Health Organization & SEARO Regional Health Papers No.4, . (1984). Low-cost water supply and sanitation technology. World Health Organization, New Delhi: .
MLA
World Health Organization & SEARO Regional Health Papers No.4, . Low-cost water supply and sanitation technology. World Health Organization, New Delhi: . 1984.