00325nam a2200133Ia 45000030006000000080041000060400015000471000018000622450050000802500010001302600022001405460012001620050017001740STCL150530s9999 xx 000 0 und d aSTCLcSTCL aMaheshwari, P aIntroduction to the embryology of angiosperms aFirst bMcgraw hillc1950 aEnglish20220125170333.0