एपीए उद्धरण

Walker, B. (1973). Environmental quality and the local health agency--a re-examination.

शिकागो स्टाइल उद्धरण

Walker, B. Environmental Quality and the Local Health Agency--a Re-examination. 1973.

एमएलए उद्धरण

Walker, B. Environmental Quality and the Local Health Agency--a Re-examination. 1973.