This study investigated the effectiveness of a library program utilizing learning centers combined with cooperative learning groups to teach research skills. Thirty-four fourth-grade students were randomly assigned to one of two groups. Students in Group A, the experimental group, were taught research skills in the library by progressing through six instructional learning centers in small cooperative groups over a 6-week period. The centers concentrated on the acquisition of specific research skills and were attentive to levels of ability and learning styles. Group B, the control group, received traditional classroom instruction on research skills. All subjects were then administered the SRA Achievement Test, and an analysis of the test scores on the reference materials portion indicated that Group A scored significantly higher than Group B. The results suggest that a library instructional center which provides multiple techniques and methods to meet various learning styles and levels of ability to teach research skills did have an impact on student achievement. The appendix includes a description of the learning centers and activities. (20 references) (Author/MES)