Gaya APA
Gilbert, J, B. (2005).
Clear speech : Pronunciation and listening Comprehension in Nort American English (Ed.3).
New York:
Student's Book.
Gaya MLA
Gilbert, Judy, B..
"Clear speech : Pronunciation and listening Comprehension in Nort American English".
Ed.3
New York:
Student's Book,
2005.
Text.