Immigration Law Sourcebook
by 
Publication Manual of the American Psychological Association
by Statutory Authority:
The Immigration and Nationality Act (INA), signed in 1952 and amended many times since, contains the majority of federal statutes governing immigration law.
The Immigration and Nationality Act is codified in Title 8 of the U.S. Code ("Aliens and Nationality"), and in some other titles, such as Title 18 ("Crimes adn Criminal Procedure") and Title 22 ("Foreign Relations").
Case law:
Federal Regulations:
Laws enacted by Congress are interpreted and implemented by regulations issued by various agencies. These regulations are published in the Code of Federal Regulations (CFR). The CFR is arranged by subject title and generally parallels the structure of the United States Code.
Other Administrative materials:
