APA

Tan K., Davis P. H., Hedge I. C., Mill R. R. & Elias T. S. (1989). The Davis and Hedge festschrift : plant taxonomy, phytogeography and related subjects. Edinburgh: University Press.

Chicago

Tan Kit, Davis Peter Hadland, Hedge Ian Charleson, Mill R R and Elias T S. 1989. The Davis and Hedge festschrift : plant taxonomy, phytogeography and related subjects. Edinburgh: University Press.

Harvard

Tan K., Davis P. H., Hedge I. C., Mill R. R. and Elias T. S. (1989). The Davis and Hedge festschrift : plant taxonomy, phytogeography and related subjects. Edinburgh: University Press.

MLA

Tan Kit, Davis Peter Hadland, Hedge Ian Charleson, Mill R R and Elias T S. The Davis and Hedge festschrift : plant taxonomy, phytogeography and related subjects. Edinburgh: University Press. 1989.