Jackson, D. C., & Jones, W. P. (1929). The profession of engineering: Essays. J. Wiley & Sons, inc. ; Chapman & Hall, Limited.

Jackson, Dugald C., and W. Paul Jones. The Profession of Engineering: Essays. New York, : London,: J. Wiley & Sons, inc. ; Chapman & Hall, Limited, 1929.

Jackson, Dugald C., and W. Paul Jones. The Profession of Engineering: Essays. J. Wiley & Sons, inc. ; Chapman & Hall, Limited, 1929.