1.3 Reference Format

COBOL programs must be written in the COBOL reference format. Figure 1 shows the reference format for a COBOL source line.

   |                        |   |                 |                         |
   |                        |   |                 |                         |
   | 1 | 2 | 3 |  4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | ... | 71 | 72 |
   |                        | | |                 |                         |
   |__Sequence Number Area__| V |____Area A_______|_________Area B__________|
                               Indicator Area


   Figure 1. Reference Format for COBOL Source Line

The following areas are described below in terms of a 72-character line:

Sequence Number Area

Columns 1 through 6

Indicator Area

Column 7

Area A

Columns 8 through 11

Area B

Columns 12 through 72

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1.3 Reference Format

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