Methods and techniques of educational research /
Jones, Ralph Herschell, 1920-.
Methods and techniques of educational research / by Ralph H. Jones. - Danville : b The Interstate Printers & Publishers, 1973. - 541 p. ; 24 cm.
Includes bibliographies.
Education--Research.
Methods and techniques of educational research / by Ralph H. Jones. - Danville : b The Interstate Printers & Publishers, 1973. - 541 p. ; 24 cm.
Includes bibliographies.
Education--Research.
