Cita APA (7a ed.)

National Gallery (Londres). (1990). The National Gallery Report: April 1989 - March 1990. National Gallery Publications.

Cita Chicago Style (17a ed.)

National Gallery (Londres). The National Gallery Report: April 1989 - March 1990. London: National Gallery Publications, 1990.

Cita MLA (9a ed.)

National Gallery (Londres). The National Gallery Report: April 1989 - March 1990. National Gallery Publications, 1990.