DRAGO, R. S. Principles of chemistry with practical perspective. Allyn and Bacon Inc.
Lua i Stíl Chicago (17ú heag.)DRAGO, Russell S. Principles of Chemistry with Practical Perspective. Allyn and Bacon Inc.
Lua MLA (8ú heag.)DRAGO, Russell S. Principles of Chemistry with Practical Perspective. Allyn and Bacon Inc.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.