Campion, G. F. M. C. (1958). An introduction to the procedure of the House of Commons (3d ed.). Macmillan.
Chicago-viite (17. p.)Campion, Gilbert Francis Montriou Campion. An Introduction to the Procedure of the House of Commons. 3d ed. London: Macmillan, 1958.
MLA-viite (9. p.)Campion, Gilbert Francis Montriou Campion. An Introduction to the Procedure of the House of Commons. 3d ed. Macmillan, 1958.
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