APA (7th ed.) Citation

Rulison, K. L. (2010). Estimation of a four-parameter item response theory model.

Chicago Style (17th ed.) Citation

Rulison, Kelly L. Estimation of a Four-parameter Item Response Theory Model. 2010.

MLA (9th ed.) Citation

Rulison, Kelly L. Estimation of a Four-parameter Item Response Theory Model. 2010.

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