(1878). [Vol. 4]: The Steam-Engine. Boulton and Watt; Lives of the Engineers. 1878.
Chicago Style (17th ed.) Citation[Vol. 4]: The Steam-Engine. Boulton and Watt; Lives of the Engineers. 1878, 1878.
MLA (9th ed.) Citation[Vol. 4]: The Steam-Engine. Boulton and Watt; Lives of the Engineers. 1878, 1878.
Warning: These citations may not always be 100% accurate.