Which entry is used when the citation number is unknown or not accepted?

Which entry is used when the citation number is unknown or not accepted?

• A. A00000000 (A & 8 zeros)
• B. X00000000 (X & 8 zeros)
• C. T00000000 (T & 8 zeros)
• D. P00000000 (P & 8 zeros)

Answer: (B)

When the citation number isn’t known or isn’t accepted, the entry should flag that status clearly. The first character serves as a status indicator, and X is the flag for unknown or not accepted. So the correct entry is X00000000, signaling that there is no valid citation number available while conforming to the required eight-digit numeric format. Other leading letters would imply a different, known status, which wouldn’t accurately reflect the situation of an unknown or unaccepted citation number.

When the citation number isn’t known or isn’t accepted, the entry should flag that status clearly. The first character serves as a status indicator, and X is the flag for unknown or not accepted. So the correct entry is X00000000, signaling that there is no valid citation number available while conforming to the required eight-digit numeric format.

Other leading letters would imply a different, known status, which wouldn’t accurately reflect the situation of an unknown or unaccepted citation number.