SULPHEY, M. (2012). INTRODUCTION TO ENVERONMENT MANAGEMENT. PHI.
Lua i Stíl Chicago (17ú heag.)SULPHEY, M.M. INTRODUCTION TO ENVERONMENT MANAGEMENT. NEW DELHI: PHI, 2012.
Lua MLA (9ú heag.)SULPHEY, M.M. INTRODUCTION TO ENVERONMENT MANAGEMENT. PHI, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.