Virata, E. T. W-surfaces which have an isometric spherical representation of their lines of curvature. s.n.
Chicago Style (17th ed.) CitationVirata, Enrique Topacio. W-surfaces Which Have an Isometric Spherical Representation of Their Lines of Curvature. [New York: s.n.
MLA (9th ed.) CitationVirata, Enrique Topacio. W-surfaces Which Have an Isometric Spherical Representation of Their Lines of Curvature. s.n.
Warning: These citations may not always be 100% accurate.