.source: <<<OPTIONAL>>> PURPOSE: Describe what source code is available with this program. If source code is not available then omit this field. The .construction field often helps further identify the type of source if you omit details here. How large is the source? FORMAT: Free form; see .description for more information. EXAMPLE: SAS/C,Manx,DICE source (750K) available for $15 EXAMPLE: Oberon source included. 85K EXAMPLE: Limited C source (15K) included. EXAMPLE: All source plus custom libraries, included: 12MB