00762nam a22002057a 4500 2010080301371.0 ENG-97752 9789380236131 100.00 EN-81285 DBAD/PUB 621.38 Sumathi, K 4717 Understanding the osi reference model / by K. Sumathi Thanjavur- Printmagic- Thanjavur-Indiia 2009 2,First Floor, Guru Complex, Rajappa Nagar, Medical College Road Thanjavur- 625020 261p. Computer network protocols 4718 ddc EN 621.38 SUM 38843 38843 0 0 0 1 NFIC DBAD DBAD 2010-08-03 DBAD/PUB 100.00 0 621.38 SUM EN-81285 2010-08-03 00:00:00 1 100.00 2010-08-03 EN