Heck, H. (1956). Kurs QDM 270°: Hans Dieter Heck. Lux.
Chicago Style (17th ed.) CitationHeck, Hans-Dieter. Kurs QDM 270°: Hans Dieter Heck. Murnau [u.a.]: Lux, 1956.
MLA (8th ed.) CitationHeck, Hans-Dieter. Kurs QDM 270°: Hans Dieter Heck. Lux, 1956.
Warning: These citations may not always be 100% accurate.