Παραπομπή APA

DONNA Erickson. (2006). MetroGreen: Connecting Open Space in North American Cities. Whasington: Island Press.

Παραπομπή Chicago Style

DONNA Erickson. MetroGreen: Connecting Open Space in North American Cities. Whasington: Island Press, 2006.

Παραπομπή MLA

DONNA Erickson. MetroGreen: Connecting Open Space in North American Cities. Whasington: Island Press, 2006.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.