एपीए उद्धरण

Lauwerys, J. (1971). sciences: Understanding. Grolier.

शिकागो स्टाइल उद्धरण

Lauwerys, J.A. Sciences: Understanding. London: Grolier, 1971.

एमएलए उद्धरण

Lauwerys, J.A. Sciences: Understanding. Grolier, 1971.