Sivarajan, V. V. Introduction to the principles of plant taxonomy / V.V. Sivarajan, edited by N.K.P. Robson. - 2nd ed. - Cambridge, Eng. : Cambridge University Press, 1991. - vii, 292 p. Originally published : Oxford & IBH Pub., 1984. ISBN: 0521356792 LCCN: 92025070 Subjects--Topical Terms: Botany--Classification.