Hartmann, H. T., & Hartmann, H. T. (1988). Plant science: Growth, development and utilization of cultivated plants (2nd ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Hartmann, Hudson T., agus Hudson Thomas Hartmann. Plant Science: Growth, Development and Utilization of Cultivated Plants. 2nd ed. Upper Saddle River, NJ: Prentice Hall, 1988.
Lua MLA (9ú heag.)Hartmann, Hudson T., agus Hudson Thomas Hartmann. Plant Science: Growth, Development and Utilization of Cultivated Plants. 2nd ed. Prentice Hall, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.