Citazione APA

Khalil, H. A. E. E., & Khalil, E. E. Energy efficiency in the urban environment.

Stile di citazione Chicago

Khalil, Heba Allah Essam E., e E. E. Khalil. Energy Efficiency in the Urban Environment.

Citazione MLA

Khalil, Heba Allah Essam E., e E. E. Khalil. Energy Efficiency in the Urban Environment.