Lindvall, C., & Cox, R. C. (1970). Evaluation as a tool in curriculum development: The IPI evaluation program. Rand McNally.
Lua i Stíl Chicago (17ú heag.)Lindvall, C.M, agus Richard C. Cox. Evaluation as a Tool in Curriculum Development: The IPI Evaluation Program. Chicago: Rand McNally, 1970.
Lua MLA (9ú heag.)Lindvall, C.M, agus Richard C. Cox. Evaluation as a Tool in Curriculum Development: The IPI Evaluation Program. Rand McNally, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.