APA (7th ed.) Citation

Smith, M. M. (2008). 21st Century Readers' Aids: Past History and Future Directions.

Chicago Style (17th ed.) Citation

Smith, Michael M. 21st Century Readers' Aids: Past History and Future Directions. 2008.

MLA (9th ed.) Citation

Smith, Michael M. 21st Century Readers' Aids: Past History and Future Directions. 2008.

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