SHORTCUTS FOR APPROACHES
| A | Sources, Apologetics |
| B | Bibliographies, Encyclopediae, Yearbooks |
| C | Hostile (Counter) |
| D | Legal |
| E | Ethnology, Anthropology |
| F | Descriptive |
| G | Journalistic |
| H | Holy Scriptures, Rituals |
| I | Psychology, Psychiatry |
| K | Comics, Children |
| L | Literature, Art |
| O | Sociology |
| P | Hostile (Anti) |
| Q | Philosophy |
| R | Novels |
| S | History |
| T | Theology, Pastoral |
| U | Political |
| V | Miscellaneous |