Aleksandrova A. J., Timofeeva S. S., & IOP Publishing. Risk Assessment for Stonecutting Enterprises.
Lua i Stíl Chicago (17ú heag.)Aleksandrova A. J., Timofeeva S. S., agus IOP Publishing. Risk Assessment for Stonecutting Enterprises.
Lua MLA (9ú heag.)Aleksandrova A. J., et al. Risk Assessment for Stonecutting Enterprises.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.