APA Style
PETS Course Book 2A. (1991).
United Kingdom:
EPB Pubishers.
Chicago Style
PETS Course Book 2A.
.
United Kingdom:
EPB Pubishers,
1991.
.
MLA Style
PETS Course Book 2A.
.
United Kingdom:
EPB Pubishers,
1991.
.
Turabian Style
PETS Course Book 2A.
United Kingdom:
EPB Pubishers,
1991.
.