APA (7th ed.) Citation

Claxton, W. J. (1939). Half-hours with great engineers. W. Gardner, Darton.

Chicago Style (17th ed.) Citation

Claxton, William J. Half-hours with Great Engineers. London: W. Gardner, Darton, 1939.

MLA (9th ed.) Citation

Claxton, William J. Half-hours with Great Engineers. W. Gardner, Darton, 1939.