APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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