APA (7th ed.) Citation

(1958). Ratio ([English ed.].). Basil Blackwell.

Chicago Style (17th ed.) Citation

Ratio. [English ed.]. Oxford [etc.]: Basil Blackwell, 1958.

MLA (9th ed.) Citation

Ratio. [English ed.]. Basil Blackwell, 1958.

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