Graham, L. E., Graham, J. M., & Wilcox, L. W. (2006). Plant biology. Upper Saddle River, NJ : Pearson/Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Graham, Linda E., James M. Graham, agus Lee Warren Wilcox. Plant Biology. Upper Saddle River, NJ : Pearson/Prentice Hall, 2006.
Lua MLA (9ú heag.)Graham, Linda E., et al. Plant Biology. Upper Saddle River, NJ : Pearson/Prentice Hall, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.