Dyfyniad APA

Butler, D., & Freeman, J. (1968). British Political Facts 1900 - 1967 (2nd ed.). Macmillan.

Dyfyniad Arddull Chicago

Butler, David, and Jennie Freeman. British Political Facts 1900 - 1967. 2nd ed. London: Macmillan, 1968.

Dyfyniad MLA

Butler, David, and Jennie Freeman. British Political Facts 1900 - 1967. 2nd ed. Macmillan, 1968.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.