APA (7e ed.) Bronvermelding

Goebel, K., Sachs, J., Garnsey, H. E. F., & Balfour, I. B. (1887). Outlines of classification and special morphology of plants. Clarendon Press.

Chicago (17e ed.) Bronvermelding

Goebel, K., Julius Sachs, Henry E. F. Garnsey, en Isaac Bayley Balfour. Outlines of Classification and Special Morphology of Plants. Oxford: Clarendon Press, 1887.

MLA (8e ed.) Bronvermelding

Goebel, K., et al. Outlines of Classification and Special Morphology of Plants. Clarendon Press, 1887.