3 singles van birtha gevonden
1972 : free spirit // dui
door birtha
single ... probe ... 1c 006-93906
[tracks]
1972 : free spirit // spa
door birtha
single ... stateside ... 1j 006-93952
[tracks]
1973 : free spirit // por
door birtha
single ... probe ... 8e 006-94209
[tracks]