APA (7th ed.) Citation

Lang, S. (1998). Challenges. Springer New York.

Chicago Style (17th ed.) Citation

Lang, Serge. Challenges. New York, NY: Springer New York, 1998.

MLA (9th ed.) Citation

Lang, Serge. Challenges. Springer New York, 1998.

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