APA (7th ed.) Citation

Richardson, J. S. (1953). Edinburgh castle: [official guide] (4th ed.). H.M.S.O..

Chicago Style (17th ed.) Citation

Richardson, J. S. Edinburgh Castle: [official Guide]. 4th ed. Edinburgh: H.M.S.O., 1953.

MLA (9th ed.) Citation

Richardson, J. S. Edinburgh Castle: [official Guide]. 4th ed. H.M.S.O., 1953.