Panama Pacific International Exposition 1915 : celebrating the opening of the Panama Canal : bulletin : business facts for business men
MLA
Panama Pacific International Exposition 1915 : Celebrating the Opening of the Panama Canal : Bulletin : Business Facts for Business Men. 0AD. https://collections.library.yale.edu/catalog/2029084.
APA, 6th edition
Panama Pacific International Exposition 1915 : celebrating the opening of the Panama Canal : bulletin : business facts for business men. (0 C.E.). [Pamphlets, Promotional literature]. https://collections.library.yale.edu/catalog/2029084.