Describir: Roots of contemporary american architecture :

 __   _     ______   _____       ___      _____      ___              
| || | ||  /_   _// |  __ \\    / _ \\   /  ___||   / _ \\      ___   
| '--' ||   -| ||-  | |  \ ||  / //\ \\ | // __    | / \ ||    /   || 
| .--. ||   _| ||_  | |__/ || |  ___  ||| \\_\ ||  | \_/ ||   | [] || 
|_|| |_||  /_____// |_____//  |_||  |_|| \____//    \___//     \__ || 
`-`  `-`   `-----`   -----`   `-`   `-`   `---`     `---`       -|_|| 
                                                                 `-`  
   ___    
  / _ \\  
 | / \ || 
 | \_/ || 
  \___//  
  `---`