Eckstut, S. (1994). Focus on grammar: Workbook. A basic course for reference and practice. Massachusetts: Addison-Wesley.
Chicago Style CitationEckstut, Samuela. Focus On Grammar: Workbook. A Basic Course for Reference and Practice. Massachusetts: Addison-Wesley, 1994.
MLA CitationEckstut, Samuela. Focus On Grammar: Workbook. A Basic Course for Reference and Practice. Massachusetts: Addison-Wesley, 1994.
Warning: These citations may not always be 100% accurate.