Porter, R. (1983). The earth sciences: An annotated bibliography. Garland Pub..
芝加哥风格引文Porter, Roy. The Earth Sciences: An Annotated Bibliography. New York: Garland Pub., 1983.
MLA引文Porter, Roy. The Earth Sciences: An Annotated Bibliography. Garland Pub., 1983.
警告：这些引文格式不一定是100％准确.