詹姆斯·史蒂文斯·库尔(英语), Classical Architecture: An Introduction to Its Vocabulary and Essentials, with a Select Glossary of Terms (W. W. Norton: 2003), p. 206.
西里尔·M·哈里斯(英语:Cyril Manton Harris), American Architecture: An Illustrated Encyclopedia (W. W. Norton: 1998), p. 248.