Παραπομπή APA

Heer, D. M. (1968). Social statistics and the city. Cambridge, Mass: Massachusetts Institute of Technology. Joint Center for Urban Studies.

Παραπομπή Chicago Style

Heer, David M. Social Statistics and the City. Cambridge, Mass: Massachusetts Institute of Technology. Joint Center for Urban Studies, 1968.

Παραπομπή MLA

Heer, David M. Social Statistics and the City. Cambridge, Mass: Massachusetts Institute of Technology. Joint Center for Urban Studies, 1968.

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