Incoming Resources
- Lake Superior Port Cities, Inc., Duluth, Minn., 2006
- Kollath-Stensaas Pub., Duluth, Minn., c2005
- Lake Superior Port Cities, Duluth, Minn., 1992
- Lake Superior Port Cities Inc., Duluth, Minn., 2010
- Pfeifer-Hamilton, Duluth, Minn., c1994
- Pfeifer-Hamilton Publishers, Duluth, Minn., c1999