APA (7th ed.) Citation

Olfert, K. (1998). Investition (7η έκδ.). Kiehl.

Chicago Style (17th ed.) Citation

Olfert, Klaus. Investition. 7η έκδ. Ludwigshafen (Rhein): Kiehl, 1998.

MLA (8th ed.) Citation

Olfert, Klaus. Investition. 7η έκδ. Kiehl, 1998.