एपीए उद्धरण

OMS. (2001). Environmental health criteria; N.221: Zinc. Geneva: OMS.

शिकागो स्टाइल उद्धरण

OMS. Environmental Health Criteria; N.221: Zinc. Geneva: OMS, 2001.

एमएलए उद्धरण

OMS. Environmental Health Criteria; N.221: Zinc. Geneva: OMS, 2001.