The Library of Congress is the authority that controls the vocabulary of subject headings that academic libraries use to organize their collections. Understanding and knowing subject headings can open up many resources that might not be found through keyword searching.
The tricky part is that these subject headings are controlled, meaning that the Library of Congress (LOC) decides what they are and then libraries have to use them. So it's helpful to know where to find these subject headings.
There are a variety of Library of Congress subject headings that are used to describe Latinos in the United States. The most common ones include
Hispanic Americans
This is the official term used to describe United States citizens of Latin American descent. Works on citizens of Latin American countries are entered under Latin Americans. Works on citizens of Latin American countries in the United States are entered under Latin Americans--United States.
There are also narrower terms that might be used:
Mexican Americans This heading is used instead of Chicanos or Hispanos.
Cuban Americans
Dominican Americans
Nicaraguan Americans
Peruvian Americans
The Border
Mexican-American Border Region
Mexican-American Border Region -- Social conditions
Border patrols -- Mexican-American Border Region
Mexican-American Border Region -- Emigration and immigration
Mental Health
Hispanic Americans -- Mental Health
Hispanic Americans -- Mental Health -- Periodicals
Emigration and Immigration -- Health Aspects
Identity
Hispanic Americans -- Social Conditions
Machismo
Hispanic Americans -- Race Identity