Unit 8 handbooks, manuals, year books, etc. Structure

Telephone, Telegraphic and Telex Directories 
Telephone Directories 
Every nation, country, state and city have telephone directory giving information 
about telephone numbers of subscribers. 
These are usually compiled by Posts and Telegraphic department of various national 
and state governments. It lists the subscribes in alphabetical order. It also provides 
address along with the subscribers phone number. 
All 
India Telephone Directory: Classified According to Trade and Professions, 
Government Departments, Individuals, 
Institutions 
etc. 
5th ed. Baroda: Indian Export 
Trade Journal, 1970. 4 vols. 
The National Directory of Addresses and Telephone Numbers. 
New York: Bantam 
Books , 1977. Irregular. 
In U.S.A., Bell 
and 
Howell Produces microfiche for 360 major current Bell 
Telephone Company directories for urban communities and regions in U.S.A. Some 
city directories have re-verse telephone number services such as, `Numerical 
Telephone Directories'. 
Some directories have a classified section, some are `an 
alphabetical listing of residents and business, a list of streets in alphabetical order 
with business and residential occupants listed in a dictionary order, and a numerical 
listing of telephone numbers directing to the subscriber's name and address. The R.L. 
Polk Company of Detroit founded in 1870, 
has issued 
over 800 such directories. It 
has also published a directory for banks and direct mail concerns. 
Every city in India has its own local directory. These directories are published by the 
State Governments and after agencies at regular intervals. 
Delhi Telephone Directory :1999. 
New Delhi : Mahanagar Telephone Nigam, 1999. 
3 vols. 

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Handbooks, Manuals, 
It used to be published irregularly but since the formation of Mahanagar Telephone 
Nigain Ltd., it has been published regularly. 
63 
YearBooks, etc. 
The directory is in three volumes having general section in alphabetical order. It also 
incorporates blue pages for State and.Cen vernmentsandYellowpages containing 
around 1600 classified heads for different products and services. 
This is an indispensable reference source for locating telephone numbers, addresses, 
organisations, names and designation of offices located in Delhi. It is a highly 
reliable source of information.