APA (7th ed.) Citation

Jessen, J. (2012). In Memoriam: Hartmut Häussermann.

Chicago Style (17th ed.) Citation

Jessen, Johann. In Memoriam: Hartmut Häussermann. 2012.

MLA (9th ed.) Citation

Jessen, Johann. In Memoriam: Hartmut Häussermann. 2012.

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