Isaac, Stephen,  1925- <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 behavioral sciences / 
Stephen Isaac and William B. Michael 
 - 3rd ed. 
 - San Diego, California :  Edits,  1997 
 - 262 p. :  il. 
<br/><br/><label>ISBN: </label>0912736321 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educacion--Investigacion<br/>Investigación Psicológica
<br/><br/><label>LC Class. No.: </label>BF76.5  / I82 1997