Trích dẫn APA

Kaplan,Sigal. Walking, cycling and the urban form: A Heckman selection model of active travel mode and distance by young adolescents /Sigal Kaplan ⇑ , Thomas Alexander Sick Nielsen, Carlo Giacomo Prato.

Trích dẫn kiểu Chicago

Kaplan,Sigal. Walking, Cycling and the Urban Form: A Heckman Selection model of Active Travel Mode and Distance By Young Adolescents /Sigal Kaplan ⇑ , Thomas Alexander Sick Nielsen, Carlo Giacomo Prato.

Trích dẫn MLA

Kaplan,Sigal. Walking, Cycling and the Urban Form: A Heckman Selection model of Active Travel Mode and Distance By Young Adolescents /Sigal Kaplan ⇑ , Thomas Alexander Sick Nielsen, Carlo Giacomo Prato.

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