APA

Gullón P., Badland H. M., Alfayate S., Bilal U., Escobar F., Cebrecos A., Diez J. & Franco M. (20160803). Assessing Walking and Cycling Environments in the Streets of Madrid: Comparing On-Field and Virtual Audits. : Journal of urban health : bulletin of the New York Academy of Medicine.

Chicago

Gullón Pedro, Badland Hannah M, Alfayate Silvia, Bilal Usama, Escobar Francisco, Cebrecos Alba, Diez Julia and Franco Manuel. 20160803. Assessing Walking and Cycling Environments in the Streets of Madrid: Comparing On-Field and Virtual Audits. : Journal of urban health : bulletin of the New York Academy of Medicine.

Harvard

Gullón P., Badland H. M., Alfayate S., Bilal U., Escobar F., Cebrecos A., Diez J. and Franco M. (20160803). Assessing Walking and Cycling Environments in the Streets of Madrid: Comparing On-Field and Virtual Audits. : Journal of urban health : bulletin of the New York Academy of Medicine.

MLA

Gullón Pedro, Badland Hannah M, Alfayate Silvia, Bilal Usama, Escobar Francisco, Cebrecos Alba, Diez Julia and Franco Manuel. Assessing Walking and Cycling Environments in the Streets of Madrid: Comparing On-Field and Virtual Audits. : Journal of urban health : bulletin of the New York Academy of Medicine. 20160803.