Chisholm, G. G., & Stamp, D. (1966). Chisholm's handbook of commercial geography (18th ed. / entirely rewritten by Dudley Stamp.). Longmans.
Lua i Stíl Chicago (17ú heag.)Chisholm, George G., agus Dudley Stamp. Chisholm's Handbook of Commercial Geography. 18th ed. / entirely rewritten by Dudley Stamp. London: Longmans, 1966.
Lua MLA (9ú heag.)Chisholm, George G., agus Dudley Stamp. Chisholm's Handbook of Commercial Geography. 18th ed. / entirely rewritten by Dudley Stamp. Longmans, 1966.
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