Lewis, D. G.
Experimental design in education D. G. Lewis - London: University of London, 1968. - 192p.
HB
Includes index
Eng
Educational research
370.78 / LEE
Experimental design in education D. G. Lewis - London: University of London, 1968. - 192p.
HB
Includes index
Eng
Educational research
370.78 / LEE