International Population Census, an extensive microfilm set (call# No. 228 (Film) is housed in the Grand Avenue Library. The data collected varies, according to the particular country's census aims, but in general this source offers much more detailed data than can be found through international statistics sources. To find the census for a particular country (eg. Thailand), do a Title search in Homer for "International Populations Census Thailand." You may then request that the microfilm rolls be delivered to the Doheny Circulation Desk under your name.