APA (7th ed.) Citation

Sheeran, P., & Orbell, S. (1999). Implementation intentions and repeated behaviour: Augmenting the predictive validity of the theory of planned behaviour. European journal of social psychology, 29(2-3), 349-369. https://doi.org/10.1002/(SICI)1099-0992(199903/05)29:2/3<349::AID-EJSP931>3.0.CO;2-Y

Chicago Style (17th ed.) Citation

Sheeran, Paschal, and Sheina Orbell. "Implementation Intentions and Repeated Behaviour: Augmenting the Predictive Validity of the Theory of Planned Behaviour." European Journal of Social Psychology 29, no. 2-3 (1999): 349-369. https://doi.org/10.1002/(SICI)1099-0992(199903/05)29:2/3<349::AID-EJSP931>3.0.CO;2-Y.

MLA (9th ed.) Citation

Sheeran, Paschal, and Sheina Orbell. "Implementation Intentions and Repeated Behaviour: Augmenting the Predictive Validity of the Theory of Planned Behaviour." European Journal of Social Psychology, vol. 29, no. 2-3, 1999, pp. 349-369, https://doi.org/10.1002/(SICI)1099-0992(199903/05)29:2/3<349::AID-EJSP931>3.0.CO;2-Y.