Bjork, W., Schraer, W. D., Horn, R. D., & Stoltze, H. J. (1995). Biology: The study of life (5th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Bjork, Warren, William D. Schraer, Ruth D. Horn, agus Herbert J. Stoltze. Biology: The Study of Life. 5th ed. Needham, Massachusetts: Prentice Hall, 1995.
Lua MLA (9ú heag.)Bjork, Warren, et al. Biology: The Study of Life. 5th ed. Prentice Hall, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.