Institution of Railway Signal Engineers & Nock, O. S. (1980). Railway signalling : a treatise on the recent practice of British railways / prepared under the direction of a committee of the Institution of Railway Signal Engineers under the general editorship of O.S. Nock: A treatise on the recent practice of British railways. Black.
Chicago Style (17th ed.) CitationInstitution of Railway Signal Engineers and O. S. Nock. Railway Signalling : A Treatise on the Recent Practice of British Railways / Prepared Under the Direction of a Committee of the Institution of Railway Signal Engineers Under the General Editorship of O.S. Nock: A Treatise on the Recent Practice of British Railways. London: Black, 1980.
MLA (9th ed.) CitationInstitution of Railway Signal Engineers and O. S. Nock. Railway Signalling : A Treatise on the Recent Practice of British Railways / Prepared Under the Direction of a Committee of the Institution of Railway Signal Engineers Under the General Editorship of O.S. Nock: A Treatise on the Recent Practice of British Railways. Black, 1980.