एपीए उद्धरण

Gerhards, P. (1999). GC/MS in clinical chemistry. Weinheim, Federal Republic of Germany ; New York: Wiley-VCH.

शिकागो स्टाइल उद्धरण

Gerhards, Petra. GC/MS in Clinical Chemistry. Weinheim, Federal Republic of Germany ; New York: Wiley-VCH, 1999.

एमएलए उद्धरण

Gerhards, Petra. GC/MS in Clinical Chemistry. Weinheim, Federal Republic of Germany ; New York: Wiley-VCH, 1999.