APA (7th ed.) Citation

Hahn, J., & Hahn, L. (1973). Recycling: Reusing our world's solid wastes. Franklin Watts.

Chicago Style (17th ed.) Citation

Hahn, James, and Lynn Hahn. Recycling: Reusing Our World's Solid Wastes. New York: Franklin Watts, 1973.

MLA (9th ed.) Citation

Hahn, James, and Lynn Hahn. Recycling: Reusing Our World's Solid Wastes. Franklin Watts, 1973.