회색문헌의 종류와 유통상의 문제점

ⓒ Copyright 1993 The Korean Medical Library Association. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.