APA Edition Citation

Briggs, D., & Walters , S. M. (1997). Plant variation and evolution (3rd ed.). CUP.

Chicago Edition Citation

Briggs, D., and S. M. Walters. Plant Variation and Evolution. 3rd ed. CUP, 1997.

MLA Edition Citation

Briggs, D., and S. M. Walters. Plant Variation and Evolution. 3rd ed. CUP, 1997.

Warning: These citations may not always be 100% accurate.