APA Style

Irwing, P. et al (2018). The wiley handbook of psychometric testing : a multidisciplinary reference on survey, scale, and test development - volume I . Singapore: Wiley Blackwell.

MLA Style

Irwing, Paul. et al. "The wiley handbook of psychometric testing : a multidisciplinary reference on survey, scale, and test development - volume I". Singapore: Wiley Blackwell, 2018. Text.