APA (7th ed.) Citation

Hatfield, H. S. (1948). The Inventor and his world. Penguin Books.

Chicago Style (17th ed.) Citation

Hatfield, H. Stafford. The Inventor and His World. Penguin Books, 1948.

MLA (8th ed.) Citation

Hatfield, H. Stafford. The Inventor and His World. Penguin Books, 1948.

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