APA (7th ed.) Citation

Billings, R. W. (1851). The power of form applied to geometric tracery. One hundred designs and their foundations resulting from one diagram. W. Blackwood and sons.

Chicago Style (17th ed.) Citation

Billings, Robert William. The Power of Form Applied to Geometric Tracery. One Hundred Designs and Their Foundations Resulting from One Diagram. Edinburgh and London: W. Blackwood and sons, 1851.

MLA (9th ed.) Citation

Billings, Robert William. The Power of Form Applied to Geometric Tracery. One Hundred Designs and Their Foundations Resulting from One Diagram. W. Blackwood and sons, 1851.