Goebel, K., Sachs, J., Garnsey, H. E. F., & Balfour, I. B. (1887). Outlines of classification and special morphology of plants. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)Goebel, K., Julius Sachs, Henry E. F. Garnsey, agus Isaac Bayley Balfour. Outlines of Classification and Special Morphology of Plants. Oxford: Clarendon Press, 1887.
Lua MLA (8ú heag.)Goebel, K., et al. Outlines of Classification and Special Morphology of Plants. Clarendon Press, 1887.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.