Sivarajan, V.V.. Introduction to the principles of plant taxonomy / V. V. Sivarajan. - 2nd rev. ed / . - New Delhi : Oxford and IBH Publishing , 1991. - x,295p. : ill.figs ; 23cm . Includes index ISBN: NULL (Hb) Subjects--Index Terms: PLANT TAXONOMY Dewey Class. No.: 580 / SIV/I