APA (7e ed.) Bronvermelding

Não informado. (1990). The British journal of phytotherapy. School of Phytotherapy.

Chicago (17e ed.) Bronvermelding

Não informado. The British Journal of Phytotherapy. East Sussex, Inglaterra: School of Phytotherapy, 1990.

MLA (8e ed.) Bronvermelding

Não informado. The British Journal of Phytotherapy. School of Phytotherapy, 1990.

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