Dyfyniad APA

Girling, C. L., & Helphand, K. I. (1994). Yard, street, park: The design of suburban open space. J. Wiley.

Dyfyniad Arddull Chicago

Girling, Cynthia L., and Kenneth I. Helphand. Yard, Street, Park: The Design of Suburban Open Space. New York: J. Wiley, 1994.

Dyfyniad MLA

Girling, Cynthia L., and Kenneth I. Helphand. Yard, Street, Park: The Design of Suburban Open Space. J. Wiley, 1994.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.