Subject guide to reference books, by Herbert S. Hirshberg ... Hirshberg, Herbert S. (Herbert Simon), 1879- American Library Association. Reference books Bibliography. Z1035 .H668 025.5 HIS "Titles ... not included in Mudge Guide to reference books and its supplements, 1935-40": p. 219-231. Chicago, American library association, 1942. 1942. 1942 Text xvi, 259, [1] p. eng