APA-viite

Briggs,D, & walters,s m. (1990). Plant variation and evolution. Cambridge University Press.

Chicago-tyylinen lähdeviittaus

Briggs,D, ja walters,s m. Plant Variation and Evolution. United Kingdom: Cambridge University Press, 1990.

MLA-viite

Briggs,D, ja walters,s m. Plant Variation and Evolution. Cambridge University Press, 1990.