APA

Blackmore S., Tootil E., . (1984). The Penguin dictionary of botany. New York: Penguin Books.

Chicago

Blackmore Stephen, Tootil Elizabeth, . 1984. The Penguin dictionary of botany. New York: Penguin Books.

Harvard

Blackmore S., Tootil E., . (1984). The Penguin dictionary of botany. New York: Penguin Books.

MLA

Blackmore Stephen, Tootil Elizabeth, . The Penguin dictionary of botany. New York: Penguin Books. 1984.