APA (7th ed.) Citation

Nock, O. S. (1964). The Great Western Railway in the twentieth century / by O.S. Nock. Allan.

Chicago Style (17th ed.) Citation

Nock, O. S. The Great Western Railway in the Twentieth Century / by O.S. Nock. Allan, 1964.

MLA (9th ed.) Citation

Nock, O. S. The Great Western Railway in the Twentieth Century / by O.S. Nock. Allan, 1964.

Warning: These citations may not always be 100% accurate.