APA (7th ed.) Citation

Yorke, F. R., & Penn, C. (1945). A Key To Modern Architecture. Blachie and Son Limited.

Chicago Style (17th ed.) Citation

Yorke, F. R.S., and Colin Penn. A Key To Modern Architecture. Blachie and Son Limited, 1945.

MLA (8th ed.) Citation

Yorke, F. R.S., and Colin Penn. A Key To Modern Architecture. Blachie and Son Limited, 1945.

Warning: These citations may not always be 100% accurate.