APA (7th ed.) Citation
Klinge, A., & Bache, C. (1998). Mastering English: A student's workbook and guide. Mouton de Gruyter.
Chicago Style (17th ed.) Citation
Klinge, Alex, and Carl Bache. Mastering English: A Student's Workbook and Guide. Berlin: Mouton de Gruyter, 1998.
MLA (9th ed.) Citation
Klinge, Alex, and Carl Bache. Mastering English: A Student's Workbook and Guide. Mouton de Gruyter, 1998.
Warning: These citations may not always be 100% accurate.