@book{293113,
	author = {United States.},
	title = {Estimated population of continental United States, for selected dates :},
	publisher = {Department of Commerce, Bureau of the Census,},
	year = {1947.},
	series = {Current population reports, population estimates. Series P-25 ;},
	address = {Washington 25, D.C. :},
	note = {"October 7, 1947."},
	url = {https://purl.fdlp.gov/GPO/gpo135160}
}