APA Edition Citation

Briggs, D., & Walters, S. M. (1984). Plant variation and evolution (2nd. ed.). CUP.

Chicago Edition Citation

Briggs, D., and S. M. Walters. Plant Variation and Evolution. 2nd. ed. Cambridge: CUP, 1984.

MLA Edition Citation

Briggs, D., and S. M. Walters. Plant Variation and Evolution. 2nd. ed. CUP, 1984.