Παραπομπή APA

(1973). Man and his urban environment. Sofia: World Centre for Technical Information and Urbanism.

Παραπομπή Chicago Style

Man and His Urban Environment. Sofia: World Centre for Technical Information and Urbanism, 1973.

Παραπομπή MLA

Man and His Urban Environment. Sofia: World Centre for Technical Information and Urbanism, 1973.

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