An index was issued for the year 1902, with supplementary indexes for 1903 and 1904 (1904 includes 1903 material)
Issues for 18 -83 published by F. Leypoldt
Subject guide to books in print, ISSN 0000-0159, issued as index, 1957- ; Books in print, ISSN 0068-0214, issued as author-title-series index, 1948-1972
