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BS 7221:1989
M00000175
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BS 7221:1989 Open systems interconnection: specification for internal organization of the Network Layer
standard by BSI Group, 12/31/1989
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Cross References:
BS 6568:Part 1
BS 7219
BS 7220
DD 98:Part 1
DD 99:Part 1
DD 108
ISO 8802:Part 4
ISO 8802:Part 5
ISO 8802:Part 7
CCITT Recommendation X.21
CCITT Recommendation X.25