APA Style
Harris, Maichael. (2008).
Challenges Students' Book 1 .
:
Longman.
Chicago Style
Harris, Maichael.
Challenges Students' Book 1.
:
Longman,
2008.
.
MLA Style
Harris, Maichael.
Challenges Students' Book 1.
:
Longman,
2008.
.
Turabian Style
Harris, Maichael.
Challenges Students' Book 1.
:
Longman,
2008.
.