APA (7th ed.) Citation
Olfert, K. (1977). Investition. Kiehl.
Chicago Style (17th ed.) Citation
Olfert, Klaus. Investition. Ludwigshafen <Rhein>: Kiehl, 1977.
MLA (9th ed.) Citation
Olfert, Klaus. Investition. Kiehl, 1977.
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