Cita APA (7a ed.)

National Gallery & Levey, M. (1969). A room-to-room guide to the National Gallery (3rd (rev.) ed., repr. (with rev. colour plates).). Publications Department, The National Gallery.

Cita Chicago Style (17a ed.)

National Gallery y Michael Levey. A Room-to-room Guide to the National Gallery. 3rd (rev.) ed., repr. (with rev. colour plates). London: Publications Department, The National Gallery, 1969.

Cita MLA (9a ed.)

National Gallery y Michael Levey. A Room-to-room Guide to the National Gallery. 3rd (rev.) ed., repr. (with rev. colour plates). Publications Department, The National Gallery, 1969.