APA (7e ed.) Bronvermelding

Não informado. (2016). Items & Issues. Social Science Research Council.

Chicago (17e ed.) Bronvermelding

Não informado. Items & Issues. New York: Social Science Research Council, 2016.

MLA (8e ed.) Bronvermelding

Não informado. Items & Issues. Social Science Research Council, 2016.

Let op: Deze citaties zijn niet altijd 100% accuraat.