1. A Recommended List of Basic Periodicals in Engineering and the Engineering Sciences. Chicago, Association of College and Reference Libraries, 1953. p. 3.
2. “Journals most frequently abstracted by Chemical Abstracts in 1954”, In Scientific serials. Chicago, Association of College and Reference Libraries, 1956.
3. op. cit., p. 2.
4. op. cit., p. 12.
5. A Study of Scientific Periodicals