एपीए उद्धरण

Spanjers, H. (1993). Respirometry in activated sludge. Agricultural University.

शिकागो स्टाइल उद्धरण

Spanjers, Henri. Respirometry in Activated Sludge. Wageningen: Agricultural University, 1993.

एमएलए उद्धरण

Spanjers, Henri. Respirometry in Activated Sludge. Agricultural University, 1993.