Tolong jelaskan mengenai Rujukan dari Hohenzollern Locomotive Works dalam bahasa melayu

The Locomotive Engineers' Pocket Book 1934, (UK), publisher unknown, page 286

The Industrial Railway Record, published by the Industrial Railway Society, ISSN 0537-5347, no. 166 (2001), page 10 and no. 170 (2002), pp 216–218