BS 1000 [51] : 1976 : UDC : mathematics
- 2nd English full ed.
- London BSI 1976
- 44p.
- FID Pub. ; No. 483 .
BS 1000 [51] : 1976
025.45:51 /
BS 1000 [51] : 1976
025.45:51 /
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