REFERENCE SOURCES (encyclopedias, dictionaries, handbooks, manuals, bibliographies, etc.) are a great place to start your research. They provide general introductions to a wide variety of topics, can explain unfamiliar concepts, or help identify references for further research. There are a wide variety of general and subject specific reference sources that will provide information on a variety of topics within the discipline of English Language and Literature.
BOOKS tend to provide in-depth information on somewhat broad topics. They are excellent sources for researching:
ARTICLES in newspapers, magazines and journals tend to provide in-depth information on very specific topics and are a great place to research both contemporary and retrospective topics in English Language and Literature. Remember that if your instructor has asked for scholarly, refereed or peer reviewed sources, you will not be able to use articles that come from a newspaper or magazine.
P Philology. Linguistics
PA Greek and Latin
PB Modern, Celtic languages
PC Romanic languages
PD Germanic, Scandinavian languages
PE English language
PF West Germanic languages
PG Slavic, Baltic, Albanian language
PH Uralic, Basque language
PJ Oriental languages and literatures
PK Indo - Iranian languages and literatures
PL Languages and literatures of Eastern Asia, Africa, Oceania
PM Hyperborean, Indian, and artificial languages
PN Literature (General)
PQ French, Italian, Spanish, Portuguese literature
PR English literature
PS American literature
PT German literature
PZ Fiction and juvenile belles lettres