Rights and Extra exist for any item type - rights can contain copyright information or the like - it is not used in any citation style.
Extra is a free ranging field that can be used for any additional information and can be cited in custom citation styles.
Website Type could contain such information as "Database", "Campaign Website" etc. It is rarely used in citation styles, but can be cited using the "genre" variable (that's also used for report type and thesis type).
Extra is a free ranging field that can be used for any additional information and can be cited in custom citation styles.
Website Type could contain such information as "Database", "Campaign Website" etc. It is rarely used in citation styles, but can be cited using the "genre" variable (that's also used for report type and thesis type).