APA (7th ed.) Citation

Cooper, C., Page, A., & Withers, P. (2011). Effects of experiment start time and duration on measurement of standard physicological variables.

Chicago Style (17th ed.) Citation

Cooper, Christine, A. Page, and P. Withers. Effects of Experiment Start Time and Duration on Measurement of Standard Physicological Variables. 2011.

MLA (9th ed.) Citation

Cooper, Christine, et al. Effects of Experiment Start Time and Duration on Measurement of Standard Physicological Variables. 2011.