APA (7th ed.) Citation

Gloag, J. (1969). Guide to Western architecture (2nd ed. revised.). Spring Books.

Chicago Style (17th ed.) Citation

Gloag, John. Guide to Western Architecture. 2nd ed. revised. Feltham: Spring Books, 1969.

MLA (9th ed.) Citation

Gloag, John. Guide to Western Architecture. 2nd ed. revised. Spring Books, 1969.