Παραπομπή APA

Walker, J. R. A. (1966). Information bulletins in special libraries: Background, problems and practice. London: Library Association.

Παραπομπή Chicago Style

Walker, J. R. A. Information Bulletins in Special Libraries: Background, Problems and Practice. London: Library Association, 1966.

Παραπομπή MLA

Walker, J. R. A. Information Bulletins in Special Libraries: Background, Problems and Practice. London: Library Association, 1966.

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