APA (7th ed.) Citation

Chisholm, G. G., Stamp, L. D., Blake, G. N., & Clark, A. N. (1980). Chisholm's handbook of commercial geography / entirely rewritten by Sir Dudley Stamp (20th ed.). Longman.

Chicago Style (17th ed.) Citation

Chisholm, George Goudie, L. Dudley Stamp, G Noel Blake, and Audrey N. Clark. Chisholm's Handbook of Commercial Geography / Entirely Rewritten by Sir Dudley Stamp. 20th ed. London (etc.): Longman, 1980.

MLA (9th ed.) Citation

Chisholm, George Goudie, et al. Chisholm's Handbook of Commercial Geography / Entirely Rewritten by Sir Dudley Stamp. 20th ed. Longman, 1980.

Warning: These citations may not always be 100% accurate.