Dyfyniad APA
Harrigan, J. J. (1988). Politics and policy in States and communities (3rd ed.). Scott, Foresman.
Dyfyniad Arddull Chicago
Harrigan, John J. Politics and Policy in States and Communities. 3rd ed. Boston: Scott, Foresman, 1988.
Dyfyniad MLA
Harrigan, John J. Politics and Policy in States and Communities. 3rd ed. Scott, Foresman, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.