@book{20627,
	author = {Vandewalker, Nina C.},
	title = {Suggestions concerning the application of the project method to kindergarten education.},
	publisher = {Govt. Print. Off.,},
	year = {1923]},
	series = {United States. Bureau of Education. Kindergarten circular,},
	address = {[Washington,},
	note = {At head of title: Department of the Interior. Bureau of Education, Washington, D.C.}
}