APA

Mabberley D. J., . (1987). Checking... The plant-book : a portable dictionary of the higher plants utilising Cronquist's An integrated system of classification of flowering plants (1981) and current botanical literature, arranged largely on the principles of editions 1-6 (1896/97-1931) of Willis's A dictionary of the flowering plants and ferns. New York: Cambridge University Press.

Chicago

Mabberley D J, . 1987. Checking... The plant-book : a portable dictionary of the higher plants utilising Cronquist's An integrated system of classification of flowering plants (1981) and current botanical literature, arranged largely on the principles of editions 1-6 (1896/97-1931) of Willis's A dictionary of the flowering plants and ferns. New York: Cambridge University Press.

Harvard

Mabberley D. J., . (1987). Checking... The plant-book : a portable dictionary of the higher plants utilising Cronquist's An integrated system of classification of flowering plants (1981) and current botanical literature, arranged largely on the principles of editions 1-6 (1896/97-1931) of Willis's A dictionary of the flowering plants and ferns. New York: Cambridge University Press.

MLA

Mabberley D J, . Checking... The plant-book : a portable dictionary of the higher plants utilising Cronquist's An integrated system of classification of flowering plants (1981) and current botanical literature, arranged largely on the principles of editions 1-6 (1896/97-1931) of Willis's A dictionary of the flowering plants and ferns. New York: Cambridge University Press. 1987.