Stewart, J. D. (1958). British pressure groups: Their role in relation to the House of commons.
शिकागो स्टाइल उद्धरणStewart, J. D. British Pressure Groups: Their Role in Relation to the House of Commons. 1958.
एमएलए उद्धरणStewart, J. D. British Pressure Groups: Their Role in Relation to the House of Commons. 1958.
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