APA (7th ed.) Citation

Pettit, S. M., & Washington, G. S. H. L. (1983). Washington Old Hall. The National Trust.

Chicago Style (17th ed.) Citation

Pettit, Sheila M., and George S. H. L. Washington. Washington Old Hall. London: The National Trust, 1983.

MLA (9th ed.) Citation

Pettit, Sheila M., and George S. H. L. Washington. Washington Old Hall. The National Trust, 1983.