Gaya APA
Chamot, Uhl Anna. (2007).
Longman keystone F : teacher's resource book .
USA:
Longman Publishing Group.
Gaya Chicago
Chamot, Uhl Anna.
Longman keystone F : teacher's resource book.
USA:
Longman Publishing Group,
2007.
Text.
Gaya MLA
Chamot, Uhl Anna.
Longman keystone F : teacher's resource book.
USA:
Longman Publishing Group,
2007.
Text.
Gaya Turabian
Chamot, Uhl Anna.
Longman keystone F : teacher's resource book.
USA:
Longman Publishing Group,
2007.
Print.