Hallowell 1951, pp. 59–61 Hallowell, Howard Thomas Sr. (1951), How a Farm Boy Built a Successful Corporation: An Autobiography, Jenkintown, Pennsylvania, USA: Standard Pressed Steel Company, LCCN52001275, OCLC521866.
Hallowell 1951, p. 51. Hallowell, Howard Thomas Sr. (1951), How a Farm Boy Built a Successful Corporation: An Autobiography, Jenkintown, Pennsylvania, USA: Standard Pressed Steel Company, LCCN52001275, OCLC521866.
Hallowell 1951, pp. 59–61 Hallowell, Howard Thomas Sr. (1951), How a Farm Boy Built a Successful Corporation: An Autobiography, Jenkintown, Pennsylvania, USA: Standard Pressed Steel Company, LCCN52001275, OCLC521866.
Hallowell 1951, p. 51. Hallowell, Howard Thomas Sr. (1951), How a Farm Boy Built a Successful Corporation: An Autobiography, Jenkintown, Pennsylvania, USA: Standard Pressed Steel Company, LCCN52001275, OCLC521866.