APA
Gregory K. J., Walling D. E. & Edward Arnold Publishers. (1973). Drainage basin form and process: a geomorphological approach. London: Edward Arnold.
Chicago
Gregory Kenneth John, Walling D E and Edward Arnold Publishers. 1973. Drainage basin form and process: a geomorphological approach. London: Edward Arnold.
Harvard
Gregory K. J., Walling D. E. and Edward Arnold Publishers. (1973). Drainage basin form and process: a geomorphological approach. London: Edward Arnold.
MLA
Gregory Kenneth John, Walling D E and Edward Arnold Publishers. Drainage basin form and process: a geomorphological approach. London: Edward Arnold. 1973.