APA (7th ed.) Citation
Doorley, D. (1991). Discovering English: Workbook (1.vyd.). Mladex.
Chicago Style (17th ed.) Citation
Doorley, Damian. Discovering English: Workbook. 1.vyd. Bratislava: Mladex, 1991.
MLA (9th ed.) Citation
Doorley, Damian. Discovering English: Workbook. 1.vyd. Mladex, 1991.
Warning: These citations may not always be 100% accurate.