APA (7th ed.) Citation

Koolhoven, H. (1979). Dutch: [a course for beginners] (New ed., 8th imp.). Hodder and Stoughton.

Chicago Style (17th ed.) Citation

Koolhoven, H. Dutch: [a Course for Beginners]. New ed., 8th imp. London [etc.]: Hodder and Stoughton, 1979.

MLA (9th ed.) Citation

Koolhoven, H. Dutch: [a Course for Beginners]. New ed., 8th imp. Hodder and Stoughton, 1979.