Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| District | Incumbent | Party | First elected | Result | Candidates |
| --- | --- | --- | --- | --- | --- |
| Ohio 5 | Del Latta | Republican | 1958.0 | Re-elected | Del Latta (R) 71.1% Carl G. Sherer (D) 28.9% |
| Ohio 6 | Bill Harsha | Republican | 1960.0 | Re-elected | Bill Harsha (R) 67.8% Raymond H. Stevens (D) 32.2% |
| Ohio 8 | Jackson Edward Betts | Republican | 1950.0 | Re-elected | Jackson Edward Betts (R) Unopposed |
| Ohio 10 | Clarence E. Miller | Republican | 1966.0 | Re-elected | Clarence E. Miller (R) 66.5% Doug Arnett (D) 33.5% |
| Ohio 11 | J. William Stanton | Republican | 1964.0 | Re-elected | J. William Stanton (R) 68.2% Ralph Rudd (D) 31.8% |
| Ohio 16 | Frank T. Bow | Republican | 1950.0 | Re-elected | Frank T. Bow (R) 56.2% Virgil L. Musser (D) 43.8% |
| Ohio 18 | Wayne L. Hays | Democratic | 1948.0 | Re-elected | Wayne L. Hays (D) 68.3% Robert Stewart (R) 31.7% |
| Ohio 21 | Louis Stokes | Democratic | 1968.0 | Re-elected | Louis Stokes (D) 77.6% Bill Mack (R) 22.4% |
Question:
Incumbent Bill Harsha was the winner in an election in which the candidates were who?
Answer:
Bill Harsha (R) 67.8% Raymond H. Stevens (D) 32.2%