Watkins, R. J. (1926). The construction industry in Ohio: A statistical analysis of a seasonal industry. Bureau of Business Research, Ohio State University.
Chicago-Zitierstil (17. Ausg.)Watkins, Ralph J. The Construction Industry in Ohio: A Statistical Analysis of a Seasonal Industry. [Columbus]: Bureau of Business Research, Ohio State University, 1926.
MLA-Zitierstil (8. Ausg.)Watkins, Ralph J. The Construction Industry in Ohio: A Statistical Analysis of a Seasonal Industry. Bureau of Business Research, Ohio State University, 1926.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.