APA (7th ed.) Citation

Walker, H., & Grabau, W. (1993). The evolution of geomorphology: A nation-by-nation summary of development. John Wiley & Sons Ltd.

Chicago Style (17th ed.) Citation

Walker, H.J, and W.E Grabau. The Evolution of Geomorphology: A Nation-by-nation Summary of Development. Chichester: John Wiley & Sons Ltd, 1993.

MLA (9th ed.) Citation

Walker, H.J, and W.E Grabau. The Evolution of Geomorphology: A Nation-by-nation Summary of Development. John Wiley & Sons Ltd, 1993.