Gaya APA
Harris, Michael, Mower, David, Sikorzynska, Anna. (2007).
Challenges Syudent's Book 2 (Cet 1).
New York:
Pearson Longman.
Gaya Chicago
Harris, Michael, Mower, David, Sikorzynska, Anna.
Challenges Syudent's Book 2.
Cet 1
New York:
Pearson Longman,
2007.
Text.
Gaya MLA
Harris, Michael, Mower, David, Sikorzynska, Anna.
Challenges Syudent's Book 2.
Cet 1
New York:
Pearson Longman,
2007.
Text.
Gaya Turabian
Harris, Michael, Mower, David, Sikorzynska, Anna.
Challenges Syudent's Book 2.
Cet 1
New York:
Pearson Longman,
2007.
Print.