Sharma, O P. Objective biology : for medical entrance examinations / by O P Sharma, N P Bali and S P Singh. - Rev. ed / . - New Delhi : Macmillan , 2004. - v. in various pagings : figs. ; 24cm . NULL ISBN: 1403924678 RS595.00 Subjects--Index Terms: BIOLOGY-STUDY AND TEACHING Dewey Class. No.: 570.76 / SHA/O