APA (7th ed.) Citation

Curtis, C., Babb, C., & Olaru, D. (2015). Built environment and children's travel to school. Elsevier Ltd.

Chicago Style (17th ed.) Citation

Curtis, C., Courtney Babb, and D. Olaru. Built Environment and Children's Travel to School. Elsevier Ltd, 2015.

MLA (9th ed.) Citation

Curtis, C., et al. Built Environment and Children's Travel to School. Elsevier Ltd, 2015.