1.
Multilevel and Longitudinal Modeling with IBM SPSS (Quantitative Methodology Series)
by Ronald H. Heck, Scott L. Th...
ISBN: 9780415817110
List Price: $49.95
2.
Multilevel and Longitudinal Modeling with IBM SPSS, Second Edition
by Heck, Ronald H., Thomas, Sc...
ISBN: 9780415817103