Ley, Terry C. (November 1988). "Paperback Books for the Teenage Reader: Celebrate the Paperback! At 50, Education's Valued Partner". English Journal. 77 (7): 89–90. doi:10.2307/818950. JSTOR818950.
Ley, Terry C. (November 1988). "Paperback Books for the Teenage Reader: Celebrate the Paperback! At 50, Education's Valued Partner". English Journal. 77 (7): 89–90. doi:10.2307/818950. JSTOR818950.