Kindergarten problems :
The materials of the kindergarten /
by John Angus MacVannel : The future of the kindergarten ; by Patty Smith Hill.
APA Citation
Hill, P. Smith., MacVannel, J. Angus. (1909). Kindergarten problems: The materials of the kindergarten. New York: Columbia University Press.
MLA Citation
Hill, Patty Smith, 1868-1946, and John Angus MacVannel. Kindergarten Problems: The Materials of the Kindergarten. New York: Columbia University Press, 1909.
Warning: These citations may not always be complete (especially for serials).