Sack, A., & Yourman, J. (1983). 100 passages to develop reading comprehension. College Skills Center.
Citazione stile Chigago Style (17a edizione)Sack, Allan, e Jack Yourman. 100 Passages to Develop Reading Comprehension. Filadelfia: College Skills Center, 1983.
Citatione MLA (9a ed.)Sack, Allan, e Jack Yourman. 100 Passages to Develop Reading Comprehension. College Skills Center, 1983.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.