Sisson, Susan B., Lee, Sarah M., Burns, Elizabeth K., Tudor-Locke, Catrine (2006). "Suitability of commuting by bicycle to Arizona elementary schools". American Journal of Health Promotion, Vol.20, No.3, January/February 2006: p.210-213
DOI: https://doi.org/10.4278/0890-1171-20.3.210

Warning: These citations may not always be 100% accurate.