Here is a list of the call number areas in the Library of Congress System where books about immigration may be found.
CLASS J - POLITICAL SCIENCE
JK Political institutions and public administration (United States)
JV Colonies and colonization. Emigration and immigration. International migratio
Colonies and colonization. Emigration and
immigration. International migration
JV1-5397
Colonies and colonization
JV1-9
Periodicals. Serials
JV10-19
Societies
JV61-152
History
JV412-461
Administration
JV500-5397
Colonizing nations
JV6001-9480
Emigration and immigration. International
migration
JV6001-6006
Periodicals. Serials
JV6021-6033
History
JV6091-6124
Emigration
JV6201-6347
Immigration
JV6403-7127
United States
JV7200-7539
Canada, Latin America, etc
There are many resources available in the library on this subject. Use this guide to find books, articles in databases and websites on this controversial topic.