APA-viite (7. p.)

SULPHEY, M. (2012). INTRODUCTION TO ENVERONMENT MANAGEMENT. PHI.

Chicago-viite (17. p.)

SULPHEY, M.M. INTRODUCTION TO ENVERONMENT MANAGEMENT. NEW DELHI: PHI, 2012.

MLA-viite (9. p.)

SULPHEY, M.M. INTRODUCTION TO ENVERONMENT MANAGEMENT. PHI, 2012.