Citazione Stile APA (7a Edizione)

Geoffrion, L. D., & Geoffrion, O. P. (1983). Computers and reading instruction. Addison-Wesley.

Citazione stile Chigago Style (17a edizione)

Geoffrion, Leo D., e Olga P. Geoffrion. Computers and Reading Instruction. Reading, Mass: Addison-Wesley, 1983.

Citatione MLA (9a ed.)

Geoffrion, Leo D., e Olga P. Geoffrion. Computers and Reading Instruction. Addison-Wesley, 1983.