Wolfe, J. M. (1934). Peace Education in the Curriculum of the Schools. Washington, D.C..
Dyfyniad Arddull ChicagoWolfe, John Marcus. Peace Education in the Curriculum of the Schools. Washington, D.C., 1934.
Dyfyniad MLAWolfe, John Marcus. Peace Education in the Curriculum of the Schools. Washington, D.C., 1934.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.