Tracklist
| Who-Dun-It? | 2:50 |
| These Days Are Filled With You | 2:40 |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| 1013 | Monk Higgins | Who-Dun-It? / These Days Are Filled With You (7", Single) | St. Lawrence Records | 1013 | US | 1966 |
| 1013 | Monk Higgins | Who-Dun-It? / These Days Are Filled With You (7") | St. Lawrence Records | 1013 | US | 1966 |
| 1013 | Monk Higgins | Who-Dun-It? / These Days Are Filled With You (7") | St. Lawrence Records | 1013 | US | 1966 |
| 1013 | Monk Higgins | Who-Dun-It? / These Days Are Filled With You (7") | St. Lawrence Records | 1013 | US | 1966 |
| 1013 | Monk Higgins | Who-Dun-It? / These Days Are Filled With You (7", Single, Promo) | St. Lawrence Records | 1013 | US | 1966 |
