Não informado. (1977). South African journal of chemistry. Foundation for Education, Science and Technology.
Chicagoスタイル(17版)引用形式Não informado. South African Journal of Chemistry. Pretoria, Africa do Sul: Foundation for Education, Science and Technology, 1977.
MLA(8版)引用形式Não informado. South African Journal of Chemistry. Foundation for Education, Science and Technology, 1977.
警告: この引用は必ずしも正確ではありません.