Bennett, J. D., & Laughton, C. A. (1971). Annotated bibliography and index of the geology of Botswana, 1967-1970. Geological Survey and Mines Dept..
芝加哥风格引文Bennett, J. D., 与 C. A. Laughton. Annotated Bibliography and Index of the Geology of Botswana, 1967-1970. [Lobatse, Botswana]: Geological Survey and Mines Dept., 1971.
MLA引文Bennett, J. D., 与 C. A. Laughton. Annotated Bibliography and Index of the Geology of Botswana, 1967-1970. Geological Survey and Mines Dept., 1971.
警告：这些引文格式不一定是100％准确.