Nicholson, P., & Cowen, R. (1846). The guide to railway masonry: Containing a complete treatise on the oblique arch in four parts ... : with an appendix (3rd ed.). Groombridge & Sons.
Chicago Style (17th ed.) CitationNicholson, Peter, and R. Cowen. The Guide to Railway Masonry: Containing a Complete Treatise on the Oblique Arch in Four Parts ... : With an Appendix. 3rd ed. London: Groombridge & Sons, 1846.
MLA (9th ed.) CitationNicholson, Peter, and R. Cowen. The Guide to Railway Masonry: Containing a Complete Treatise on the Oblique Arch in Four Parts ... : With an Appendix. 3rd ed. Groombridge & Sons, 1846.
Warning: These citations may not always be 100% accurate.