Gaya APA
Harris, Michael, Mower, David, Sikorzynska, Anna. (2008).
Challenges Student's Book 3 (Cet 1).
New York:
Pearson Longman.
Gaya Chicago
Harris, Michael, Mower, David, Sikorzynska, Anna.
Challenges Student's Book 3.
Cet 1
New York:
Pearson Longman,
2008.
Text.
Gaya MLA
Harris, Michael, Mower, David, Sikorzynska, Anna.
Challenges Student's Book 3.
Cet 1
New York:
Pearson Longman,
2008.
Text.
Gaya Turabian
Harris, Michael, Mower, David, Sikorzynska, Anna.
Challenges Student's Book 3.
Cet 1
New York:
Pearson Longman,
2008.
Print.