Book Reviews: Rutter,Michael,Maughan,Barbara,Mortimore,Peter,& Ouston,Janet,Fifteen Thousand Hours: Secondary Schools and Their Effects on Children. Cambridge,Mass. Harvard University Press,1979. 285 pp.

Book Reviews: Rutter,Michael,Maughan,Barbara,Mortimore,Peter,& Ouston,Janet,Fifteen Thousand Hours: Secondary Schools and Their Effects on Children. Cambridge,Mass. Harvard University Press,1979. 285 pp.