Gaya APA
Gude, Kathy, Duckworth, Michael. (2008).
Proficiency Masterclass Student's Book (Student edition (September 26, 2008).
New York:
Oxford University Press.
Gaya Chicago
Gude, Kathy, Duckworth, Michael.
Proficiency Masterclass Student's Book.
Student edition (September 26, 2008
New York:
Oxford University Press,
2008.
Text.
Gaya MLA
Gude, Kathy, Duckworth, Michael.
Proficiency Masterclass Student's Book.
Student edition (September 26, 2008
New York:
Oxford University Press,
2008.
Text.
Gaya Turabian
Gude, Kathy, Duckworth, Michael.
Proficiency Masterclass Student's Book.
Student edition (September 26, 2008
New York:
Oxford University Press,
2008.
Print.