Recent controversies surrounding plagiarism of research papers submitted to domestic scholarly journals and dissertations lead to scrutiny in the level of scholarly community and that of government as well. Particularly the latter is beginning to deal with the problem as a matter of establishing academic and research ethics at international level. This study looks into the notions and definitions of citation and plagiarism4 along with some basic issues around them in academic and research writings. This study is done in the perspective of library and information science through literature survey. And the following three aspects are investigated and analysed in detail as results of this study. First. the types and related problems of plagiarism are closely examined. Second, citation styles in writing academic and research papers are compared and analysed. Finally, deterring and preventing measures against plagiarism and appropriate citation practices are suggested.