(1970). Switzerland 1982: People and State Economy Culture. Berne: Geographical Publishers.
शिकागो स्टाइल उद्धरणSwitzerland 1982: People and State Economy Culture. Berne: Geographical Publishers, 1970.
एमएलए उद्धरणSwitzerland 1982: People and State Economy Culture. Berne: Geographical Publishers, 1970.
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