APA (7th ed.) Citation

Sommer, H. (2009). Lothar Groll (1929 - 1984) ([Electronic ed.].).

Chicago Style (17th ed.) Citation

Sommer, Heinz. Lothar Groll (1929 - 1984). [Electronic ed.]. 2009.

MLA (9th ed.) Citation

Sommer, Heinz. Lothar Groll (1929 - 1984). [Electronic ed.]. 2009.

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