00453nam a2200133Ia 450000500170000008000190001724501170003626000720015330000110022550000340023658300190027094200130028999900170030220260716043053.0  a08.05.02 I59ca  aCarrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications  bInstitute of Electrical and Electronics EngineersaNew YorkUSc1988  a143 p.  aAn American national standard  c3/7/00kM2LMGR  cMmI59ca  c39772d39772