The Lloyd Sealy Library has a good collection of books on sociology topics. Many of them are shelved around call numbers starting with an H.
Useful to know Library of Congress classifications:
H = social sciences
HA = statistics
HB = demography
HM = general sociology
HN = Social history and conditions, Social problems, Social reform
HQ = family, marriage, women
HT = Communities, classes, races.
HV = social pathology. Welfare. Criminology.
For a full breakdown of the call numbers see the Library of Congress Classification Online: H subclasses.
Of course, it is more efficient if you are researching a particular topic to get the call numbers for books by seraching the catalog, CUNY+.
When searching the catalog OneSearch, in addition to the call number, note the section where the book is located in the library.
Stacks: the main circulating collection of the library. On the north side of the library: call numbers A–H are on the upper level; call numbers J–Z are on the lower level. Stacks books can be borrowed for 4 weeks by undergraduates and staff, 6 weeks by masters students, and 8 weeks by doctoral students and faculty. They can be renewed online.
Reserve: books kept behind the Reserve Desk on the lower floor. Most can be used only within the library. More info »
Reference: upper level of the library, towards 11th avenue. Not circulating (can't borrow outside of the library).
Law Reference: upper level of the library, towards 58th street. Not circulating.
Special Collections: upper level of the library. Ask at the Reference Desk. Not circulating.
Searching using the vocabulary of subject headings can improve search results. Here are some words and phrases used in Library of Congress sociology related subject headings:
Crime Sociological aspects
Emigration and immigration
Genocide Sociological aspects
Suicide Sociological aspects
United States Emigration and immigration Social aspects