Silving, H. (1948). Immigration laws of the United States ([Library ed.].). Oceana Publications.
Chicago-viite (17. p.)Silving, Helen. Immigration Laws of the United States. [Library ed.]. New York: Oceana Publications, 1948.
MLA-viite (9. p.)Silving, Helen. Immigration Laws of the United States. [Library ed.]. Oceana Publications, 1948.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.