Does not end in punctuation.

Does not end in  a period.

No statement.

End with a mark of punctuation or a closing parenthesis.

Do not end with a mark of punctuation unless the last word in the field is an abbreviation, initial/letter, or data that ends with a mark of punctuation.

Ends with a period, even when another mark of punctuation is present, unless the last word in the field is an abbreviation, initial/letter, or data that ends with a period.

End with a period.

Generally ends with a mark of punctuation, a closing parenthesis, closing angle bracket, closing bracket, or a comma.

Ends with a period if there is a 4XX in the record; otherwise it ends with a period unless another mark of punctuation or a closing parentheses is present.

Does not end with a mark of punctuation unless the field ends with an abbreviation, an initial/letter, or other data that ends with a mark of punctuation.

Ends with a period unless another mark of punctuation is present.

Subfield |a of field 504 ends with a period unless another mark of punctuation is present.

Field 505 ends with a period when the field contains complete or partial contents, unless another mark of punctuation or a closing angle bracket (<>) is present or unless the contents continue in another occurrence of field 505.  If the field contains incomplete contents, no period is recorded, unless the last word, initial/letter, or abbreviation ends in a period.

Ends with a period unless another mark of punctuation is present.

Ends with a mark of punctuation or a closing parenthesis.

Local rules.

1) Mark of punctuation is a period (.), a question mark (?), an exclamation mark (!), or a hyphen (-).

2) Separating punctuation in LC's system includes the hypen (-), period (.), and slash(/).

3) Subfields |2 through |5  usually, if not always, end with no punctuation.The mark of punctuation or closing parenthesis precedes those subfields.

MARC 21 Format for Bibliographic Data 1999 Ed. from Cataloger's Desktop