South African Committee for Stratigraphy. (1989). Chronostratigraphic series. Republic of South Africa, Dept. of Mineral and Energy Affairs, Geological Survey.
芝加哥风格引文South African Committee for Stratigraphy. Chronostratigraphic Series. Pretoria: Republic of South Africa, Dept. of Mineral and Energy Affairs, Geological Survey, 1989.
MLA引文South African Committee for Stratigraphy. Chronostratigraphic Series. Republic of South Africa, Dept. of Mineral and Energy Affairs, Geological Survey, 1989.
警告：这些引文格式不一定是100％准确.