Gregory, R. (2004). Squaring the circle: 30 St Mary Axe, London : Architekten: Foster and Partners / Bennett Interior Design. The Architectural Review.
Style de citation Chicago (17e éd.)Gregory, Rob. "Squaring the Circle: 30 St Mary Axe, London : Architekten: Foster and Partners / Bennett Interior Design." The Architectural Review 2004.
Style de citation MLA (8e éd.)Gregory, Rob. "Squaring the Circle: 30 St Mary Axe, London : Architekten: Foster and Partners / Bennett Interior Design." The Architectural Review, 2004.
Attention : ces citations peuvent ne pas être correctes à 100%.