@book{Portes1999,
author="Alejandro Portes",
title="Immigration Theory of a New Century : Some Problems and Opportunities",
year="1999",
booktitle="The Handbook of International Migration : The American Experience",
editor="Charles Hirschman",
publisher="Russell Sage Foundation",
address="New York",
pages="n.a.",
keyword0="Immigration",
keyword1="International Migration",
keyword2="Migration",
keyword3="Political Transnationalism",
keyword4="Transnational Politics",
type="chapter"
}