APA-viite (7. p.)
Pelfrey, R. (2006). The mathematics program improvement review: A comprehensive evaluation process for K-12 schools. Association for Supervision and Curriculum Development.
Chicago-viite (17. p.)
Pelfrey, Ron. The Mathematics Program Improvement Review: A Comprehensive Evaluation Process for K-12 Schools. Alexandria, Va.: Association for Supervision and Curriculum Development, 2006.
MLA-viite (9. p.)
Pelfrey, Ron. The Mathematics Program Improvement Review: A Comprehensive Evaluation Process for K-12 Schools. Association for Supervision and Curriculum Development, 2006.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.