APA (7th ed.) Citation
Hanwell, J. D., & Newson, M. D. (1973). Techniques in physical geography. Macmillan.
Chicago Style (17th ed.) Citation
Hanwell, James D., and Malcolm David Newson. Techniques in Physical Geography. London: Macmillan, 1973.
MLA (9th ed.) Citation
Hanwell, James D., and Malcolm David Newson. Techniques in Physical Geography. Macmillan, 1973.
Warning: These citations may not always be 100% accurate.