Lockard, H., & Cox, J. (1979). Documentation: A computerized instructional resource management system. College of Education, Dept. of Secondary Education, University of Illinois.
Lua i Stíl Chicago (17ú heag.)Lockard, Henry, agus John Cox. Documentation: A Computerized Instructional Resource Management System. Urbana, Ill.: College of Education, Dept. of Secondary Education, University of Illinois, 1979.
Lua MLA (8ú heag.)Lockard, Henry, agus John Cox. Documentation: A Computerized Instructional Resource Management System. College of Education, Dept. of Secondary Education, University of Illinois, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.