APA (7th ed.) Citation

Frank, L., Kerr, J., Chapman, J., & Sallis, J. (2007). Urban Form Relationships with Walk Trip Frequency and Distance among Youth. American journal of health promotion, 21(4_suppl), 305-311. https://doi.org/10.4278/0890-1171-21.4s.305

Chicago Style (17th ed.) Citation

Frank, Lawrence, Jacqueline Kerr, Jim Chapman, and James Sallis. "Urban Form Relationships with Walk Trip Frequency and Distance Among Youth." American Journal of Health Promotion 21, no. 4_suppl (2007): 305-311. https://doi.org/10.4278/0890-1171-21.4s.305.

MLA (9th ed.) Citation

Frank, Lawrence, et al. "Urban Form Relationships with Walk Trip Frequency and Distance Among Youth." American Journal of Health Promotion, vol. 21, no. 4_suppl, 2007, pp. 305-311, https://doi.org/10.4278/0890-1171-21.4s.305.