If holdings are complete, one holdings field is used showing inclusive complete volumes.
Holdings complete:
| 866 | 4 | 1 | ‡8 0 ‡a v.1(1976)-v.20(1996) |
Use a comma (,) to indicate a gap in holdings. When a gap occurs, Yale practice is to enter a new 866 field, the equivalent of a "line break":
| 866 | 4 | 1 | ‡8 0 ‡a v.1:no.1(1982:Jan.)-v.6:no.2(1987:June), |
| 866 | 4 | 1 | ‡8 0 ‡a v.6:no.4(1987:Oct.)-v.7:no.4(1988:Oct.) |
| 866 | 4 | 1 | ‡8 0 ‡a v.1:no.1(1981:fall)-v.1:no.2(1981:winter), |
| 866 | 4 | 1 | ‡8 0 ‡a v.2:no.3(1982:spring)-v.10:no.2(1989:winter), |
| 866 | 4 | 1 | ‡8 0 ‡a v.11(1990/1992) |
Use a semicolon (;) to indicate a change in enumeration (non-gap break). If a non-gap break occurs adjacent to a gap, a semicolon may be placed next to a comma. Yale practice is to enter a new 866 field when a non-gap break occurs.
| 866 | 4 | 1 | ‡8 0 ‡a v.1(1981)-v.2(1982); |
| 866 | 4 | 1 | ‡8 0 ‡a new ser.:v.1(1983)-new ser.:v.7(1989);, |
| 866 | 4 | 1 | ‡8 0 ‡a new ser.2:no.2(1991)-new ser.2:no.3(1993) |
A semicolon may also be used to denote a gap when a volume was never published.
| 866 | 4 | 1 | ‡8 0 ‡a v.1(1981)-v.2(1982); |
| 866 | 4 | 1 | ‡8 0 ‡a v.4:no.1(1984) |
However, if it is possible to compress the holdings (i.e., in situations where a change in enumeration is not involved), the non-gap break is not accounted for. If, in the previous example, all issues for v. 4 were received, the holdings would be recorded as:
| 866 | 4 | 1 | ‡8 0 ‡a v.1(1981)-v.4(1984) |
CAUTION: the bibliographic record must indicate that the volume was never published.