United States. Senate <br/><br/>
Panama Canal 

 - Washington :   Government Printing Office,   1913. 
 - 15 p. :   láms., mapas, planos ;   18 cm. 
 - Senate document ;   146 .
<br/><br/> Message from the President of the United States transmiting a reporty by the commission of fine arts in relation to the artistic structure of the Panama canal