APA (7e ed.) Bronvermelding

Não informado. (1981). Journal of Asthma. Association for the Care of Asthma.

Chicago (17e ed.) Bronvermelding

Não informado. Journal of Asthma. Baltimore, Md: Association for the Care of Asthma, 1981.

MLA (8e ed.) Bronvermelding

Não informado. Journal of Asthma. Association for the Care of Asthma, 1981.

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