APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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