There are some excellent Scientific journals and periodicals that describe the characteristics you seek. For those not directly connected with the scientific community, probably one of the easiest to obtain is a publication called "The Sun", (aka "The Scum")
This journal, with its distinctive red mast-head, carries some excellent well-researched, objective and in-depth articles on Wops / Spiks / Dagoes etc. and there respective traits, both physical (big-noses, greasy, eetc.)and cultural (Garlic-eating, bum-pinching, war-losing etc. etc.)
However, you could forego the abstract word, and experience these peoples and culture for yourself . Far-off and exotic locations such as Benidorm and Faliraki are excellent locations to observe these funny little Europeans in their natural environment.