| A1 | U-Men | 3:15 | ||
| A2 | Ethics | 2:27 | ||
| B1 | Principles | 4:40 | ||
| B2 | Body To Body | 4:10 |
A side originally released as a 7" in April 1982.
B side originally released as a 7" in October 1981.
| Title, Format | Label | Cat# | Country | Year | ||
|---|---|---|---|---|---|---|
| Two In One (12", Ltd, Comp) | New Dance, New Dance, New Dance | ND 009, NEW D 009, 009 | Belgium | 1983 | ||
| Two In One (CD, Single) | New Dance | ND 009 CD | Belgium | 1988 | ||
| Two In One (12", M/Print, RE, Comp) | New Dance | ND 009 | Belgium | 1986 | ||
| Two In One (12", RP, Comp) | New Dance | ND 009 | Belgium | |||
| Two In One (CD, Single, Mini) | New Dance, New Dance | ND009 CD, ND 009 CD | Belgium | 1988 |