American Library Association, Chicago. Descriptive list of professional and nonprofessional duties in libraries.
शिकागो स्टाइल उद्धरणAmerican Library Association, Chicago. Descriptive List of Professional and Nonprofessional Duties in Libraries.
एमएलए उद्धरणAmerican Library Association, Chicago. Descriptive List of Professional and Nonprofessional Duties in Libraries.
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