Billings, R. W., & Billings, R. W. (1851). The power of form applied to geometric tracery: One hundred designs and their foundations resulting from one diagram. London: Published for the author by William Blackwood and Sons.
Chicago Style CitationBillings, Robert William, and Robert William Billings. The Power of Form Applied to Geometric Tracery: One Hundred Designs and Their Foundations Resulting From One Diagram. London: Published for the author by William Blackwood and Sons, 1851.
MLA CitationBillings, Robert William, and Robert William Billings. The Power of Form Applied to Geometric Tracery: One Hundred Designs and Their Foundations Resulting From One Diagram. London: Published for the author by William Blackwood and Sons, 1851.
Warning: These citations may not always be 100% accurate.