Gaya APA

Ofiesh, G, D., Meierhenry, W, C. (1964). Trends in Programmed Instruction: Papers from the First Annual Convention of the National Society for Programmed Instruction . Washington: National Education Association (NEA).

Gaya MLA

Ofiesh, Gabriel, D.., Meierhenry, Wesley, C.. "Trends in Programmed Instruction: Papers from the First Annual Convention of the National Society for Programmed Instruction". Washington: National Education Association (NEA), 1964. Art Original.