Gross, E. L., Cancel, A. R., & Figueroa, O. (1977). Small business works! AMACOM.
Lua i Stíl Chicago (17ú heag.)Gross, Eugene L., Adrian R. Cancel, agus Oscar Figueroa. Small Business Works! New York: AMACOM, 1977.
Lua MLA (9ú heag.)Gross, Eugene L., et al. Small Business Works! AMACOM, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.