1.
, . Economic geography. New York: Macmillan; 1961.
et . Economic geography. New York : Macmillan, 20 mai 1961
Jones Clarence Fielden & Darkenwald Gordon Gerald. (1961). Economic geography. Macmillan.
MLA (8th ed.) CitationJones Clarence Fielden and Darkenwald Gordon Gerald. Economic Geography. Macmillan, 1961.
Warning: These citations may not always be 100% accurate.