Bals, L., & Hartmann, E. (2008). Sourcing of services. Nova Science Publishers.
Chicago Style (17th ed.) CitationBals, Lydia, and Evi Hartmann. Sourcing of Services. New York: Nova Science Publishers, 2008.
MLA citiranjeBals, Lydia, and Evi Hartmann. Sourcing of Services. Nova Science Publishers, 2008.
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