Chisholm, G. (1975). Chisholm`s handbook of commercial Geography (19th.). Longman.
Cita Chicago (17th ed.)Chisholm, G. Chisholm`s Handbook of Commercial Geography. 19th. London: Longman, 1975.
Cita MLA (9th ed.)Chisholm, G. Chisholm`s Handbook of Commercial Geography. 19th. Longman, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.