ERIC recognizes a fairly large number of document or publication types, e.g. Masters Theses, Teaching Guides, Book Reviews, Journal Articles, Statistical Data, etc. These publication types are assigned a number. This records publication types are as follows:
| 060 | Historical Materials |
| 080 | Journal Articles |
| 141 | Descriptive (i.e. Project Descriptions) |
If you'd like to see a complete list of ERIC publication types click, here
If we wanted to locate more historical materials on homosexuality using ERIC, we could employ Publication Type number 060 and the descriptor, "homosexuality," to form a search. Below are links to the same Publication Type search conducted using three different ERIC interfaces.