A method of normalizing a bibliographic field of a structured field relational database is disclosed. The method includes weighting potential candidate records according to the value in the corresponding field in the records, together with other related fields in the candidate record and other related records in the database. Each of the candidate records is successively evaluated and compared against an acceptable threshold. If the weight exceeds the threshold, the candidate record is returned from the query. Otherwise, a new entry in the database is created. Optionally, before creating such a new entry, the highest weighted candidate record may be compared against a minimally acceptable threshold and if the weight exceeds such a lower threshold, the candidate is returned from the query.