Isaac, Stephen <br/><br/>
Handbook in research and evaluation  : a collection of principles, methods and strategies useful in the planning, design and evaluation of studies in education and the beahavioral sciences 
/ Stephen Isaac, ...William B. Michael, ... 
. - 2nd ed. 
. - San Diego  : EdITS, 1982
. - 234 p.  : couv. ill. en coul.  ; 24 cm. 
<br/><br/>Bibliogr. 
<br/><br/><label>ISBN: </label>0912736259 
<br/><br/><label>Source: </label> Don 
<br/><br/><label>Universal Decimal Class. No.: </label>370.012.