Gaya APA
McBride, E, J., Chapman, J. (2006).
DOWNTOWN 4 : English for Work and Life ( WORKBOOK) .
Boston:
Sherrise Roehr.
Gaya MLA
McBride, Edward, J.., Chapman, John.
"DOWNTOWN 4 : English for Work and Life ( WORKBOOK)".
Boston:
Sherrise Roehr,
2006.
Text.