APA (7th ed.) Citation

Shayer, M., & Ginsburg, D. (2009). Thirty years on - a large anti-Flynn effect? (II): 13- and 14-year-olds. Piagetian tests of formal operations norms 1976-2006/7. British Journal of Educational Psychology, 79(3), 409. https://doi.org/10.1348/978185408X383123

Chicago Style (17th ed.) Citation

Shayer, Michael, and Denise Ginsburg. "Thirty Years on - a Large Anti-Flynn Effect? (II): 13- and 14-year-olds. Piagetian Tests of Formal Operations Norms 1976-2006/7." British Journal of Educational Psychology 79, no. 3 (2009): 409. https://doi.org/10.1348/978185408X383123.

MLA (9th ed.) Citation

Shayer, Michael, and Denise Ginsburg. "Thirty Years on - a Large Anti-Flynn Effect? (II): 13- and 14-year-olds. Piagetian Tests of Formal Operations Norms 1976-2006/7." British Journal of Educational Psychology, vol. 79, no. 3, 2009, p. 409, https://doi.org/10.1348/978185408X383123.