APA (7th ed.) Citation

Heißenbüttel, H. (1989). Warwick lesson.

Chicago Style (17th ed.) Citation

Heißenbüttel, Helmut. Warwick Lesson. 1989.

MLA (9th ed.) Citation

Heißenbüttel, Helmut. Warwick Lesson. 1989.

Warning: These citations may not always be 100% accurate.