Gaya APA
HARRIS, Michael, Mower, Sikorzynska. (2002).
Opportunities Upper Intermediate : Students Book .
England:
Pearson education Limited.
Gaya Chicago
HARRIS, Michael, Mower, Sikorzynska.
Opportunities Upper Intermediate : Students Book.
England:
Pearson education Limited,
2002.
Monograf.
Gaya MLA
HARRIS, Michael, Mower, Sikorzynska.
Opportunities Upper Intermediate : Students Book.
England:
Pearson education Limited,
2002.
Monograf.
Gaya Turabian
HARRIS, Michael, Mower, Sikorzynska.
Opportunities Upper Intermediate : Students Book.
England:
Pearson education Limited,
2002.
Monograf.