@book{20666,
	author = {Root, William Thomas,},
	title = {Prefirst-grade training,},
	publisher = {Govt. Print Off.,},
	year = {1923]},
	series = {United States. Bureau of Education. Kindergarten circular,},
	address = {[Washington,},
	note = {Reprint from School life, June, 1923.}
}