New light on the history of urban populations.

MLA

Helleiner, Karl F. New Light On the History of Urban Populations. New York: s.n., 1958.

APA

Helleiner, K. F. (1958). New light on the history of urban populations. New York: s.n.

Chicago

Helleiner, Karl F. New Light On the History of Urban Populations. New York: s.n., 1958.