ChicagoHarold M. Mayer, Richard Clement Wade · First published 1955 · Latest edition 1973Open the Tome
The need for duplicate locks on the Illinois waterwayHarold M. Mayer · First published 1960Open the Tome
Impact of industrial development on midwestern communitiesHarold M. Mayer · First published 1955Open the Tome
The St. Lawrence Seaway project and some of its economic effects upon CanadaHarold M. Mayer · First published 1955Open the Tome