The interdisciplinary nature of the literature of American library history indicates that much of the best literature in the field is published in journals which do not fit within the familiar confines of "Library Literature." To illustrate the difficulties, a bibliography of 170 items relating to Pennsylvania library history was checked against "Library Literature,""Writings on American History," and "America: History and Life." Only 93 of the 170 entries were located in these sources. The author suggests broadening the coverage of "Library Literature," publication of an annual review of the literature of American library history, and the preparation of a comprehensive bibliography of American library history, as remedies for this lack of coverage. The author concludes that the absence of these essential tools has hindered collection building in the field and has led to considerable duplication of research. (Related papers appear as LI 002 796 - LI 002 798 and LI 002 800 - LI 002 808.) (Author/AB)