APA (7e ed.) Bronvermelding

Não informado. Trends. National School Public Relations Association.

Chicago (17e ed.) Bronvermelding

Não informado. Trends. Washington: National School Public Relations Association.

MLA (8e ed.) Bronvermelding

Não informado. Trends. National School Public Relations Association.

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