Gaya APA
Ur, Penny. (2003).
Grammar Practice Activities: A Practical guide for teachers (Seventeenth).
New York:
CambridgeUniversity Press.
Gaya Chicago
Ur, Penny.
Grammar Practice Activities: A Practical guide for teachers.
Seventeenth
New York:
CambridgeUniversity Press,
2003.
Text.
Gaya MLA
Ur, Penny.
Grammar Practice Activities: A Practical guide for teachers.
Seventeenth
New York:
CambridgeUniversity Press,
2003.
Text.
Gaya Turabian
Ur, Penny.
Grammar Practice Activities: A Practical guide for teachers.
Seventeenth
New York:
CambridgeUniversity Press,
2003.
Print.