This is published monthly, and is a good source for current coverage of U.N. activity. It can be used to find information for years not yet covered by a Yearbook . Every U.N. document has a symbol consisting of a combination of letters and numbers, separated by slashes. These symbols contain information regarding the issuing body within the U.N., what type of information the document contains, and sometimes the date of publication. Besides U.N. symbols, U.N. publications which are considered of interest to a wide range of readers may also carry sales numbers.
Some documents have only a sales number.
Citation to a U.N. document must include both numbers, if available. Official records later than those listed are shelved on the fifth floor. It is organized into separate sections to search by author, title, and subject. Indexes for earlier publications are also available. The U.N. is the most important organization involved in international law, and issues many publications dealing with a wide array of legal matters.