Cita APA (7a ed.)
Bals, L., & Hartmann, E. (2008). Sourcing of services. Nova Science Publishers.
Cita Chicago Style (17a ed.)
Bals, Lydia, y Evi Hartmann. Sourcing of Services. New York: Nova Science Publishers, 2008.
Cita MLA (9a ed.)
Bals, Lydia, y Evi Hartmann. Sourcing of Services. Nova Science Publishers, 2008.
Precaución: Estas citas no son 100% exactas.