APA (7e ed.) Bronvermelding

Não informado. (1990). Belgian Journal of Botany. Royal Botanical Society of Belgium.

Chicago (17e ed.) Bronvermelding

Não informado. Belgian Journal of Botany. Brussels: Royal Botanical Society of Belgium, 1990.

MLA (8e ed.) Bronvermelding

Não informado. Belgian Journal of Botany. Royal Botanical Society of Belgium, 1990.

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