APA (7e ed.) Bronvermelding
Geudens, T., & Costanzo, S. (2013). International voluntary service (Revised edition.). Council of Europe Publishing.
Chicago (17e ed.) Bronvermelding
Geudens, Tony, en Simona Costanzo. International Voluntary Service. Revised edition. Strasbourg, France: Council of Europe Publishing, 2013.
MLA (9e ed.) Bronvermelding
Geudens, Tony, en Simona Costanzo. International Voluntary Service. Revised edition. Council of Europe Publishing, 2013.
Let op: Deze citaties zijn niet altijd 100% accuraat.