Gaya APA

Girling, C, L., Helphand, K, I. (1994). Yard-Street-Park : The Design Of Suburban Open Space . Canada: John Wiley & Sons.

Gaya MLA

Girling, Cynthia, L.., Helphand, Kenneth, I.. "Yard-Street-Park : The Design Of Suburban Open Space". Canada: John Wiley & Sons, 1994. Text.