Ward, D. S., Linnan, L., Vaughn, A., Neelon, B., Martin, S. L., & Fulton, J. E. (2007). Characteristics associated with US Walk to School programs. BioMed Central.
Citação norma ChicagoWard, Dianne S., Laura Linnan, Amber Vaughn, Brian Neelon, Sarah L. Martin, and Janet E. Fulton. Characteristics Associated With US Walk to School Programs. BioMed Central, 2007.
MLA CitationWard, Dianne S., et al. Characteristics Associated With US Walk to School Programs. BioMed Central, 2007.
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