Lakes, K. D., Vaughan, J., Radom-Aizik, S., Taylor Lucas, C., Stehli, A., & Cooper, D. (2019). Development of the Parent Perceptions of Physical Activity Scale (PPPAS): Results from two studies with parents of infants and toddlers. PloS one, 14(5), e0213570. https://doi.org/10.1371/journal.pone.0213570
Chicago Style (17th ed.) CitationLakes, Kimberley D., Jessica Vaughan, Shlomit Radom-Aizik, Candice Taylor Lucas, Annamarie Stehli, and Dan Cooper. "Development of the Parent Perceptions of Physical Activity Scale (PPPAS): Results from Two Studies with Parents of Infants and Toddlers." PloS One 14, no. 5 (2019): e0213570. https://doi.org/10.1371/journal.pone.0213570.
MLA (9th ed.) CitationLakes, Kimberley D., et al. "Development of the Parent Perceptions of Physical Activity Scale (PPPAS): Results from Two Studies with Parents of Infants and Toddlers." PloS One, vol. 14, no. 5, 2019, p. e0213570, https://doi.org/10.1371/journal.pone.0213570.