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29
Carroll J. Workers’ Average Commute Round Trip Is 46 Minutes in a Typical Day, August 24, 2007 //
30
См., например: Bianchi S. M. et al. Is Anyone Doing the Housework? Trends in the Gender Division of Household Labor // Social Forces 79, 1 (2000): 191–228.
31
Bureau of Labor Statistics. American Time Use Survey Summary, June 22, 2011 //
32
Van Dongen H. P. A. et al. The Cumulative Cost of Additional Wakefulness: Dose Response Effects on Neurobehavioral Functions and Sleep Physiology from Chronic Sleep Restriction and Total Sleep Deprivation // Sleep 26, No. 2 (2003): 117–126.
