00634nam a2200217   45000010008000000030008000080050017000160080041000330100017000740400027000910500018001180820013001362450066001492600037002153000048002523500010003003650014003105040052003246500013003767000027003894545510BD-DhUL20141118142459.0701204s1971    nyua     b    001 0 eng    a   70113932   aDLCcDLCdDLCdBD-DhUL00aQH308.7b.C4500a574bBAC00aCentral concepts of biology / cAdela S. Baer ... [ et at. ].  aNew York :bMacmillan, c c1971.  avii, 385 p. :bill. ( some col.) ; c24 cm.  a$8.95  aGBPb3.50  aIncludes bibliographical references and index.. 0aBiology.1 aBaer, Adela S.,d1931-