Gaya APA

Alexander, L., Ferguson, P. (2004). Question and Answer : Graded Oral Comprehension Exercises (Ed.1.; Cet.18). New York: .

Gaya MLA

Alexander, L.G.., Ferguson, Peter. "Question and Answer : Graded Oral Comprehension Exercises". Ed.1.; Cet.18 New York: , 2004. Text.