00285nam a2200109Ia 4500008004100000082002100041100001900062245003400081250000800115260004200123300001000165240913s9999||||xx |||||||||||||| ||und||  aGS    587  SRI/F  aH N Srivastava 0aFundamentals of pteridophytes  a3rd  bPradeep PublicationsaJalandharc1997  a224p.