Gaya APA
Peterson,Patricia. (1995).
Writing Skill Practice Book For EFl Beginning/Intermediate level .
Washinton:
United States department of state.
Gaya Chicago
Peterson,Patricia.
Writing Skill Practice Book For EFl Beginning/Intermediate level.
Washinton:
United States department of state,
1995.
Text.
Gaya MLA
Peterson,Patricia.
Writing Skill Practice Book For EFl Beginning/Intermediate level.
Washinton:
United States department of state,
1995.
Text.
Gaya Turabian
Peterson,Patricia.
Writing Skill Practice Book For EFl Beginning/Intermediate level.
Washinton:
United States department of state,
1995.
Print.