Cita APA (7a ed.)

National Gallery (Great Britain) & Holmes, C. J. (1926). Illustrated guide (4th and rev. ed.). Printed for the Trustees.

Cita Chicago Style (17a ed.)

National Gallery (Great Britain) y C. J. Holmes. Illustrated Guide. 4th and rev. ed. London: Printed for the Trustees, 1926.

Cita MLA (8a ed.)

National Gallery (Great Britain) y C. J. Holmes. Illustrated Guide. 4th and rev. ed. Printed for the Trustees, 1926.