Não informado. (1977). South African journal of chemistry. Foundation for Education, Science and Technology.
Style de citation Chicago (17e éd.)Não informado. South African Journal of Chemistry. Pretoria, Africa do Sul: Foundation for Education, Science and Technology, 1977.
Style de citation MLA (8e éd.)Não informado. South African Journal of Chemistry. Foundation for Education, Science and Technology, 1977.
Attention : ces citations peuvent ne pas être correctes à 100%.