You can use the MLA style BUT I would prefer you use the APA Publications Manual as you guide.  Use peer reviewed journals whenever possible and U.S. Government sites that can be found through the Fed world online index.  Do a professional job. I want you to look at migration patterns and numbers coming into the U.S. or what would become the U.S. since the European colonization began in the 15th century and follow it all the way up to today.  Start with European colonization time frame even though recent discoveries have found that the ancient civilizations such as the Minoan’s and others may have been here thousands of years ago.  How have the migration numbers and patterns changed over time?  Examine the numbers of people and where they came from and for what reasons they came here, making sure to look at what proportion of the population they represented at the time of migration.  During the 89th Congress President Lyndon Johnson was able to get a bill through Congress and sign it into law that led to a major reform in immigration law and greatly changed the immigration pattern. Consider all of the influences on migration over time, why things changed, how they changed and how it all led up to where we are today. ...

1. You can use the MLA style BUT I would prefer you use the
APA Publications Manual as you guide. Use peer reviewed
journals whenever possible and U.S. Government sites that can
be found through the Fed world online index. Do a professional
job.
I want you to look at migration patterns and numbers coming
into the U.S. or what would become the U.S. since the European
colonization began in the 15th century and follow it all the way
up to today. Start with European colonization time frame even
though recent discoveries have found that the ancient
civilizations such as the Minoan’s and others may have been
here thousands of years ago. How have the migration numbers
and patterns changed over time? Examine the numbers of
people and where they came from and for what reasons they
came here, making sure to look at what proportion of the
population they represented at the time of migration. During
the 89th Congress President Lyndon Johnson was able to get a
bill through Congress and sign it into law that led to a major
reform in immigration law and greatly changed the immigration
pattern. Consider all of the influences on migration over time,
why things changed, how they changed and how it all led up to
where we are today.