Calvin, H. C., & Stuart, E. G. (1925). The merchant shipping industry. J. Wiley & Sons, inc.; Chapman & Hall, ltd..
Lua i Stíl Chicago (17ú heag.)Calvin, H. C., agus E. G. Stuart. The Merchant Shipping Industry. New York : London: J. Wiley & Sons, inc.; Chapman & Hall, ltd., 1925.
Lua MLA (8ú heag.)Calvin, H. C., agus E. G. Stuart. The Merchant Shipping Industry. J. Wiley & Sons, inc.; Chapman & Hall, ltd., 1925.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.