Ogus, J. L., & Clark, D. F. (1971). The annual survey of manufactures: A report on methodology. U. S. Department of Commerce.
Lua i Stíl Chicago (17ú heag.)Ogus, Jack L., agus Donald F. Clark. The Annual Survey of Manufactures: A Report on Methodology. Washington: U. S. Department of Commerce, 1971.
Lua MLA (9ú heag.)Ogus, Jack L., agus Donald F. Clark. The Annual Survey of Manufactures: A Report on Methodology. U. S. Department of Commerce, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.