00462nam a22001457a 4500008004100000020001800041040005500059080002600114100001900140245006100159260003800220300001800258650001600276653002400292230504b        |||||||| |||| 00| 0 eng d  a0-13-638222-3  aNational Science LibrarycNational Science Library  a681.7.068:621.39 bM5  aSenior, John M  aOptical fiber communications: bPrinciples and practice   aNew York: bPrentice Hall, c1985  axviii, 558p.   aIndustries   aCylindrical fibres