Cita APA (7a ed.)

Potterton, H. (1977). The National Gallery, London =: La galería nacional, Londres. Thames and Hudson.

Cita Chicago Style (17a ed.)

Potterton, Homan. The National Gallery, London =: La Galería Nacional, Londres. New York: Thames and Hudson, 1977.

Cita MLA (9a ed.)

Potterton, Homan. The National Gallery, London =: La Galería Nacional, Londres. Thames and Hudson, 1977.