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Dyfyniad Arddull ChicagoMarx, Sallie, Betty Winkler, and Debra E. Bernhardt. How We Became War Tax Resisters. 1989.
Dyfyniad MLAMarx, Sallie, et al. How We Became War Tax Resisters. 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.