Science Information Associates. (1964). Technical and commercial intelligence.
Lua i Stíl Chicago (17ú heag.)Science Information Associates. Technical and Commercial Intelligence. Temple, Texas, 1964.
Lua MLA (9ú heag.)Science Information Associates. Technical and Commercial Intelligence. 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.