PDB file format

From: Andy Holder <AHOLDER -AatT- VAX1.UMKC.EDU>
Subject: PDB file format
Date: Fri, 10 Sep 1993 07:28:47 -0500 (CDT)

 I need a source for the file format of PDB files.  Is there
 a lit reference or soemthing?  (Example of small molecule
 quantum chemist struggling with the "real" world!)
    Thanks,  Andy Holder
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