Curriculum in the modern elementary school / Robert H. Beck, Walter W. Cook [and] Nolan C. Kearney. Beck, Robert H. (Robert Holmes) Education, Elementary Curricula. LB1570 .B395 1960 372 BEC Englewood Cliffs, N.J. : Prentice-Hall, 1960. 1960. 1960 Text 513 p. : eng Prentice-Hall education series