Skinner, B. J. (1976). Earth resources (2nd ed.). Prentice-hall.
芝加哥风格引文Skinner, Brian J. Earth Resources. 2nd ed. Englewood Cliffs, N. J: Prentice-hall, 1976.
MLA引文Skinner, Brian J. Earth Resources. 2nd ed. Prentice-hall, 1976.
警告：这些引文格式不一定是100％准确.