Specify a record in the following format:
record RECORD_NAME
record is a keyword. RECORD_NAME is the name of another record that has been previously defined.
A record cannot contain itself, either directly or indirectly. The limit on nesting depends on available memory, but is essentially unlimited. There is no WIDTH specifier associated with a record specification, since the fields are already defined in the definition of the record being referenced. (See Example 2.)