Enger,Eldon C. <br/><br/>Concepts in biology Eldon C. Enger,Frederick C. Ross  - Eight  Edition  - Boston:  McGraw-Hill;  [1997]  - xvii, 458 pages:  with Illustration;  27 cm. <br/><br/>Include index <br/><br/><label>ISBN: </label>0697272052 <br/><br/><label>LC Class. No.: </label>QH 308.2  / .E576 1997