http://www.pritzkerprize.com/1988-bunshaft/works

http://www.worldarchitecturemap.org/buildings/national-commercial-bank

Exterior. http://www.worldarchitecturemap.org/buildings/national-commercial-bank

http://www.greatbuildings.com/buildings/National_Commercial_Bank_.html

Sección. Imagen 804, página 644. La arquitectura moderna desde 1900 - William Curtis

http://www.pritzkerprize.com/1988-bunshaft/works

http://www.greatbuildings.com/buildings/National_Commercial_Bank_.html

Planta. http://www.greatbuildings.com/buildings/National_Commercial_Bank_.html