APA (7th ed.) Citation

Rettig, R. B. (1969). Guide to Cambridge architecture: Ten walking tours. MIT Press.

Chicago Style (17th ed.) Citation

Rettig, Robert Bell. Guide to Cambridge Architecture: Ten Walking Tours. Cambridge, Mass: MIT Press, 1969.

MLA (9th ed.) Citation

Rettig, Robert Bell. Guide to Cambridge Architecture: Ten Walking Tours. MIT Press, 1969.

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