@article{annals-of-iowa 11213, author = {}, title = {The Nation Builders: a Sesquicentennial History of the Corps of Topographical Engineers, 1838-1863}, volume = {50}, year = {1990}, url = {https://pubs.lib.uiowa.edu/annals-of-iowa/article/id/11213/}, issue = {4}, doi = {10.17077/0003-4827.9446}, abstract = {}, month = {4}, pages = {439-439}, issn = {2473-9006}, publisher={State Historical Society of Iowa}, journal = {The Annals of Iowa} }