APA (7th ed.) Citation

Gregor, A. S. (1974). Man's mark on the land: The changing environment from the stone age to the age of smog, sewage, and tar on your feet. Scribner.

Chicago Style (17th ed.) Citation

Gregor, Arthur S. Man's Mark on the Land: The Changing Environment from the Stone Age to the Age of Smog, Sewage, and Tar on Your Feet. New York: Scribner, 1974.

MLA (9th ed.) Citation

Gregor, Arthur S. Man's Mark on the Land: The Changing Environment from the Stone Age to the Age of Smog, Sewage, and Tar on Your Feet. Scribner, 1974.