418245 Beattie, D. H., Somerville, W. M., & Britain), I. o. M. E. (. (1978). Ship's gear: A review of deck machinery. London : Marine Management Ltd.

418245 Beattie, D. H., W. M. Somerville, and Institute of Marine Engineers (Great Britain). Ship's Gear: A Review of Deck Machinery. London : Marine Management Ltd, 1978.

418245 Beattie, D. H., et al. Ship's Gear: A Review of Deck Machinery. London : Marine Management Ltd, 1978.