What is encyclopedia?
Encyclopedias can be characterized as books about things, while dictionaries are books about words. Encyclopedias synthesize knowledge, giving readers a view of what is known about a myriad of specific topics, and present an orderly assembly of the facts essential to an understanding of each topic. Modern encyclopedias are designed to serve as a point of reference from which a reader can proceed to other sources that contain more detailed information. The term encyclopedia derives from classical Greek meaning "rounded education" (enkyklios paideia, "circle of learning").
What is thesaurus?
A thesaurus helps you avoid repetition in your writing and helps you find a word for an idea you have in mind. You can use it to increase your vocabulary as the typical thesaurus has synonyms for more than 100,000 words.
What is almanac?
The World Almanac was first published in 1868 by the New York World newspaper. After being suspended in 1876, Joseph Pulitzer revived it in 1886. In 1894, the name was changed to The World Almanac and Encyclopedia until 1923 when it became The World Almanac and Book of Facts.
Almanac
What is gazetteer?A Gazetteer is a geographical dictionary. Instead of including lists of words, it includes lists of places. These places can be settlements (cities, towns, villages) or geographical features (hills, rivers, regions, parks, tourist attractions etc.). We have extended the concept of a Gazetteer to include famous people and family names.
US Gazetteer
What is bibliography?
Publication in either printed or electronic format, usually arranged by author, date or subject, which offers a listing of works produced either by one author, in one subject, in one place, or during one period. A list of works consulted in the composition of a book, article, or assignment.(Source)
Examples of reference sources,
Online reference sites Reference.com
Case study : Reference desk
