APA-viite

Scagel, R. Plant diversity: An evolutionary approch. Wadsworth Publishers.

Chicago-tyylinen lähdeviittaus

Scagel, R.F. Plant Diversity: An Evolutionary Approch. Belmount: Wadsworth Publishers.

MLA-viite

Scagel, R.F. Plant Diversity: An Evolutionary Approch. Wadsworth Publishers.