Gaya APA

Eckstut, Samuela. (1994). Focus On Grammer Workbook . California: ADDISON WESLEY.

Gaya Chicago

Eckstut, Samuela. Focus On Grammer Workbook. California: ADDISON WESLEY, 1994. .

Gaya MLA

Eckstut, Samuela. Focus On Grammer Workbook. California: ADDISON WESLEY, 1994. .

Gaya Turabian

Eckstut, Samuela. Focus On Grammer Workbook. California: ADDISON WESLEY, 1994. .