Graham, Ruth (13 January 2013). "Boardinghouses: Where the City was Born". The Boston Globe. Dicapai pada 2018-04-20. Ralat petik: Tag <ref> tidak sah, nama "Graham" digunakan secara berulang dengan kandungan yang berbeza
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Groth, Paul. Living Downtown: The History of Residential Hotels in the United States. Chapter One – Conflicting Ideas about Hotel Life. Berkeley: University of California Press, 1994. http://ark.cdlib.org/ark:/13030/ft6j49p0wf/
Groth, Paul. Living Downtown: The History of Residential Hotels in the United States. Chapter Eight – From Scattered Opinion to Centralized Policy. Berkeley: University of California Press, 1994. http://ark.cdlib.org/ark:/13030/ft6j49p0wf/
Wholesale prices, wages, and transportation. Report by Mr. Aldrich, from the Committee on Finance, March 3, 1893. 52d Cong., 2d sess. Senate. Rept. 1394. Washington. 1893. m/s. 449. hdl:2027/uc1.c061422449.