@book{viii+international+congress+on+navigation+paris+1900+sect+3+lenses+for+ship+039+s+lights+communication,
    author = {Cay, William Dyce},
    title = {VIII International Congress on Navigation, Paris - 1900. Sect. 3, Lenses for ship's lights : communication},
    address = {Paris},
    publisher = {Imprimerie générale Lahure},
    date = {1900}
}