(1891). [Vol. 2]: Harbous, Lighthouses, Bridges. Smeaton and Rennie. 1891.
Chicago Style (17th ed.) Citation[Vol. 2]: Harbous, Lighthouses, Bridges. Smeaton and Rennie. 1891, 1891.
MLA (9th ed.) Citation[Vol. 2]: Harbous, Lighthouses, Bridges. Smeaton and Rennie. 1891, 1891.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.