APA (7th ed.) Citation

Rudolf, F. G. (1978). How it works. Souvenir Press.

Chicago Style (17th ed.) Citation

Rudolf, F. Graf. How It Works. Souvenir Press, 1978.

MLA (8th ed.) Citation

Rudolf, F. Graf. How It Works. Souvenir Press, 1978.

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