APA (7th ed.) Citation

Steila, D., Wilms, D. C., & Leahy, E. P. (1981). Earth and man: A systematic geography. John Wiley r Sons.

Chicago Style (17th ed.) Citation

Steila, Donald, Douglas C. Wilms, and Edward P. Leahy. Earth and Man: A Systematic Geography. John Wiley r Sons, 1981.

MLA (8th ed.) Citation

Steila, Donald, et al. Earth and Man: A Systematic Geography. John Wiley r Sons, 1981.