APA (7th ed.) Citation

Frankl, P. (1962). Gothic architecture. Penguin.

Chicago Style (17th ed.) Citation

Frankl, Paul. Gothic Architecture. Harmondsworth: Penguin, 1962.

MLA (9th ed.) Citation

Frankl, Paul. Gothic Architecture. Penguin, 1962.

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