APA (7th ed.) Citation

Cooper, C. N., & Kennedy, R. E. On an asymptotic formula for the niven numbers. Wiley.

Chicago Style (17th ed.) Citation

Cooper, Curtis N., and Robert E. Kennedy. On an Asymptotic Formula for the Niven Numbers. Wiley.

MLA (9th ed.) Citation

Cooper, Curtis N., and Robert E. Kennedy. On an Asymptotic Formula for the Niven Numbers. Wiley.

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