Nock, O. S. (1967). British steam locomotives at work. Allen & Unwin.
Chicago Style (17th ed.) CitationNock, Oswald Stevens. British Steam Locomotives at Work. London: Allen & Unwin, 1967.
MLA (9th ed.) CitationNock, Oswald Stevens. British Steam Locomotives at Work. Allen & Unwin, 1967.
Warning: These citations may not always be 100% accurate.