Robinson, R., & Jackson, I. J. (1984). People on earth: Human geography. Longman.
芝加哥风格引文Robinson, Roger, 与 I. J. Jackson. People on Earth: Human Geography. Harlow, Essex, England: Longman, 1984.
MLA引文Robinson, Roger, 与 I. J. Jackson. People on Earth: Human Geography. Longman, 1984.
警告：这些引文格式不一定是100％准确.