2. Determine which names should have cross-references. Using the cross-reference blanks, write the letter of the original name plus an X. Then write the cross-reference. 3. Add the names you prepared as cross-references to the bottom of the table with the other names. Code the cross-reference names by writing each unit in the appropriate column. Cross-Reference Cross-Reference Cross-Reference Cross-Reference Cross- Reference Cross-Reference 4. Compare the key units and the other units, if needed, to determine the correct alphabetic filing order for the names, including the cross-references. Indicate the correct filing order by writing numbers beside the names in the Order column.2. Determine which names should have cross-references. Using the cross-reference blanks, write the letter of the original name plus an X. Then write the cross-reference. 3. Add the names you prepared as cross-references to the bottom of the table with the other names. Code the cross-reference names by writing each unit in the appropriate column. Cross-Reference Cross-Reference Cross-Reference Cross-Reference Cross- Reference Cross-Reference 4. Compare the key units and the other units, if needed, to determine the correct alphabetic filing order for the names, including the cross-references. Indicate the correct filing order by writing numbers beside the names in the Order column.