APA (7e ed.) Bronvermelding

Não informado. (1903). South African Journal of Science. Associated Scientific & Technical Societies of South Africa.

Chicago (17e ed.) Bronvermelding

Não informado. South African Journal of Science. Johannesburg, Africa do Sul: Associated Scientific & Technical Societies of South Africa, 1903.

MLA (8e ed.) Bronvermelding

Não informado. South African Journal of Science. Associated Scientific & Technical Societies of South Africa, 1903.

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