Andree, K., Heiderich, F., & Sieger, R. (1910). Karl Andree's Geographie des Welthandels. Heinrich Keller.
Chicago Style (17th ed.) CitationAndree, Karl, Franz Heiderich, and Robert Sieger. Karl Andree's Geographie Des Welthandels. Frankfurt a. M.: Heinrich Keller, 1910.
MLA (8th ed.) CitationAndree, Karl, et al. Karl Andree's Geographie Des Welthandels. Heinrich Keller, 1910.
Warning: These citations may not always be 100% accurate.