U.S. Dept. of Health, Education, and Welfare, Education Division, National Center for Education Statistics : for sale by the Supt. of Docs, U.S. Govt. Print. Off.1978, 1979 printing.<FC36-27>
by Robert L. Crain, Rita E. Mahard ; prepared for National Center for Education Statistics, U.S. Department of Health, Education, and WelfareU.S. Dept. of Health, Education, and Welfare, Education Division, National Center for Education Statistics[1978]
Klaus Schweikert ... [et al.], mit e. Gutachten Die Jungarbeiterfrage als berufspädagogisches Problem von Hans-Joachim Röhrs u. Karlwilhelm StratmannSchroedel1977