Koebel, W. H. (1918). South America: An industrial and commercial field. C. Scribner's Sons.
Chicago Style (17th ed.) CitationKoebel, W. H. South America: An Industrial and Commercial Field. New York: C. Scribner's Sons, 1918.
MLA (9th ed.) CitationKoebel, W. H. South America: An Industrial and Commercial Field. C. Scribner's Sons, 1918.
Warning: These citations may not always be 100% accurate.