Hahn, J., & Hahn, L. (1973). Recycling: Reusing our world's solid wastes. Franklin Watts.
芝加哥风格引文Hahn, James, 与 Lynn Hahn. Recycling: Reusing Our World's Solid Wastes. New York: Franklin Watts, 1973.
MLA引文Hahn, James, 与 Lynn Hahn. Recycling: Reusing Our World's Solid Wastes. Franklin Watts, 1973.
警告：这些引文格式不一定是100％准确.