Safe school study Vol. 2, Appendix C. Safe school study methodology report. Appendix D. Supplementary materials and instruments

Författare
(Publ. by U.S. Department of health, education and welfare, the National institute of education)
Språk
Engelska
Förlag År Ort Om boken ISBN
DHEW 1977 USA, Washington x sidor., sidor. C 1-C 130, sidor. D 1-D 359