00652nam a2200169Ia 4500008004100000040001700041082002200058100002000080110007500100245011700175260007000292300001500362440003300377650004700410942000800457999001700465190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta407.2bU58L  aHayes, Alfred S  aUnited States Department of Health, Education and Welfare (Washington) 0aLanguage laboratory facilitiesbtechnical guide for the selection, purchase, use and maintenancecAlfred S Hayes  aWashingtonbU S Department of Health, Education and Welfarec1963  avii, 119p.  aNew media for instruction; 4  aLanguage laboratories; Technology-Language  cBKS  c34290d34290