Digitized
Material en el que se registra la información: Translucent paper
Técnica en que se registra la información: Pencil
Ian Lambet (editor). Norman Foster: Team 4 and Foster Associates; Buildings and projects, Volume 1: 1964-1973 (Watermark Publications UK Limited, London 1991) p. 37.
David Jenkins (editor). Norman Foster: Works 1 (Prestel Verlag, Berlin, London, Munich, New York, 2002) p. 51.
Drawing atributed to Norman Foster in Lambot (ed.) 1991: p.260.
Unsigned