00413nam a22000977a 4500008004100000040005500041245013400096260005300230300001400283500001800297230718b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aInformation sciences: bInformation centres and special librariesc/ Defense Documentation Center Alexandria, Virginia March 1972  aVirginia: bDefense Documentation Center, c1972  av, P-14p.  aVol. II of IV