Van Loon, H. W. (1932). Van loon's geography : the story of the: World (De luxe ed.). Garden City.
Chicago Style (17. basım) AtıfVan Loon, Hendrik Willem. Van Loon's Geography : the Story of the: World. De luxe ed. New York: Garden City, 1932.
MLA (9th ed.) AtıfVan Loon, Hendrik Willem. Van Loon's Geography : the Story of the: World. De luxe ed. Garden City, 1932.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..