Modal cities /
Pidot, George B.
Modal cities / George B. Pidot, John W. Sommer. - Washington D.C. : U.S. Environmental Protection Agency, 1974. - 55 p. : ill. ; 29 cm.
Cities and towns--Classification.
Cities and towns--Mathematical models.--United States
Modal cities / George B. Pidot, John W. Sommer. - Washington D.C. : U.S. Environmental Protection Agency, 1974. - 55 p. : ill. ; 29 cm.
Cities and towns--Classification.
Cities and towns--Mathematical models.--United States