Παραπομπή APA

Roberts, H. (1949). Supplement to the law of town and country planning. Charles Knight.

Παραπομπή Chicago Style

Roberts, Howard. Supplement to the Law of Town and Country Planning. London: Charles Knight, 1949.

Παραπομπή MLA

Roberts, Howard. Supplement to the Law of Town and Country Planning. Charles Knight, 1949.