Walter, C. (1982). Authentic reading: Teacher's book and key. Cambridge University.
Citazione stile Chigago Style (17a edizione)Walter, Catherine. Authentic Reading: Teacher's Book and Key. Nueva York: Cambridge University, 1982.
Citatione MLA (9a ed.)Walter, Catherine. Authentic Reading: Teacher's Book and Key. Cambridge University, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.