00331nam a2200121Ia 45000030006000000080041000060400015000471000020000622450089000822600009001715460012001800050017001920STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aWodehouse, R.p.  aPollen grains their structue identification and significance in science and Medicine  c1965  aEnglish20220125170332.0