Cite
MLA Citation
Filipe Rodrigues et al.. “The Basic Psychological Need Satisfaction and Frustration Scale in Exercise (BPNSFS-E): Validity, Reliability, and Gender Invariance in Portuguese Exercisers.” Perceptual and motor skills, vol. 126, no. 5, 2019, pp. 949–972. http://access.bl.uk/ark:/81055/vdc_100087778949.0x000024