Frost, B. (1975). The Tactics of pressure: A critical review of six British pressure groups. Galliard.
Chicago-viite (17. p.)Frost, Brian. The Tactics of Pressure: A Critical Review of Six British Pressure Groups. London: Galliard, 1975.
MLA-viite (8. p.)Frost, Brian. The Tactics of Pressure: A Critical Review of Six British Pressure Groups. Galliard, 1975.
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