Critical issues in environmental management

অনুযায়ী Rajashekhara, C V
প্রকাশিত 1992

Mining Environment management manual

অনুযায়ী Gurdeep Singh, Pal, Asim Kumar, Pathak, Pramod, Sarkar, Bhabesh Chandra, Saxena, Naresh Chandra
প্রকাশিত 2005