APA-referens (7:e uppl.)
ebrary, Inc, Krupka, D., Krupková, O., & Saunders, D. J. (2009). Variations, geometry and physics: In honour of Demeter Krupka's sixty-fifth birthday. Nova Science Publishers.
Chicago-referens (17:e uppl.)
ebrary, Inc, D. Krupka, Olga Krupková, och D. J. Saunders. Variations, Geometry and Physics: In Honour of Demeter Krupka's Sixty-fifth Birthday. New York: Nova Science Publishers, 2009.
MLA-referens (9:e uppl.)
ebrary, Inc, et al. Variations, Geometry and Physics: In Honour of Demeter Krupka's Sixty-fifth Birthday. Nova Science Publishers, 2009.
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