<Ul> <Li> White pages generally indicates personal or alphabetic listings . </Li> <Li> Yellow pages, golden pages, A2Z, or classified directory is usually a "business directory", where businesses are listed alphabetically within each of many classifications (e.g., "lawyers"), almost always with paid advertising . </Li> <Li> Grey pages, sometimes called a "reverse telephone directory", allowing subscriber details to be found for a given number . Not available in all jurisdictions . (These listings are often published separately, in a city directory, Polk directory, or under another name, for a price, and made available to commercial and government agencies .) </Li> </Ul> <Li> White pages generally indicates personal or alphabetic listings . </Li> <Li> Yellow pages, golden pages, A2Z, or classified directory is usually a "business directory", where businesses are listed alphabetically within each of many classifications (e.g., "lawyers"), almost always with paid advertising . </Li> <Li> Grey pages, sometimes called a "reverse telephone directory", allowing subscriber details to be found for a given number . Not available in all jurisdictions . (These listings are often published separately, in a city directory, Polk directory, or under another name, for a price, and made available to commercial and government agencies .) </Li>

What do the yellow pages of the telephone directory classify