APA (7th ed.) Citation

Walden, B. L. Searching for Kaprekar's constants: Algorithms and results. Wiley.

Chicago Style (17th ed.) Citation

Walden, Byron L. Searching for Kaprekar's Constants: Algorithms and Results. Wiley.

MLA (9th ed.) Citation

Walden, Byron L. Searching for Kaprekar's Constants: Algorithms and Results. Wiley.

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