00979nam a2200277 i 450099100353447970753620021217151936.0981119s1988 us a 000 0 eng d023106358Xb11826459-39ule_instLE00302549ExLDip.to Biologiaeng561.5Beck, Charles B.443095Origin and evolution of gymnosperms /edited by Charles B. BeckNew York :Columbia University Press,c1988xiv, 504 p. :ill. ;23 cmGymnospermsEvolutionGymnospermsOriginPaleobotany.b1182645929-06-1118-12-02991003534479707536LE003 561 BEC01.01 (1988)12003000007671le003-E0.00-l- 00000.i1207668518-12-02Origin and evolution of gymnosperms898408UNISALENTOle00301-01-98ma -engus 01