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"Electricity in now available to 15,- 000,000 homes in the United States," says Miss Zula M. Dowler in a thesis "A Study of the Operation Cost of an Electric- Oven" prepared at Iowa State College. "Electricity is expensive, but an attempt to reduce the cost by adopting more efficient methods may make it more widely used."
Nisewanger, Melba and McDaniel, Dorothy
"Home Economics Research at Iowa State,"
The Iowa Homemaker: Vol. 7
, Article 6.
Available at: https://lib.dr.iastate.edu/homemaker/vol7/iss7/6