APA (7th ed.) Citation

Sibelius, P., & Högnäs, G. (1990). Natural contradictions and the concept of action in mechanics ([1st ed.].). Åbo Akademi University.

Chicago Style (17th ed.) Citation

Sibelius, Patrick, and G. Högnäs. Natural Contradictions and the Concept of Action in Mechanics. [1st ed.]. Turku: Åbo Akademi University, 1990.

MLA (9th ed.) Citation

Sibelius, Patrick, and G. Högnäs. Natural Contradictions and the Concept of Action in Mechanics. [1st ed.]. Åbo Akademi University, 1990.