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APA Citation
Gucciardi, D. F., Peeling, P., Ducker, K. J., & Dawson, B. (n.d.). when the going gets tough: Mental toughness and its relationship with behavioural perseverance. Journal of science and medicine in sport, 19(1), 81–86. http://access.bl.uk/ark:/81055/vdc_100029833201.0x000008