@misc{200,
  keywords = {Educational literature, Mennonites, Immigration, Pennsylvania Germans, Upper Canada, Waterloo County},
  author = {Donald Crownover and Daniel Wenger},
  title = {The trail of the black walnut},
  abstract = {A teaching aid intended for high school students learning about the ties between Lancaster County, Pennsylvania, and Waterloo County, Ontario. The kit consists of loose overhead transparencies and printed resource materials, including maps and pictures.},
  year = {1985},
  number = {Report},
  pages = {1 v. (unpaged). ill., maps, bibl.+},
  publisher = {Second Penn Institute in Local History, University of Pennsylvania},
  address = {Lancaster, PA},
  language = {English},
}