Leedy, Paul D.

Practical research : planning and design / Paul D. Leedy, Jean ne Ellis Ormrod. - 8th ed. - Upper Saddle River, N.J. : Prentice Hall, 2005. c1989. - xxiii, 319 p. : ill. ; 28 cm.

Includes bibliographical references (p. 309-311) and index.

0131108956

2003-066035


Research-- Methodology.

001.4