00446nam a22001457a 4500 66941 66938 8174090444 661.8 BHA Bhaskararao, B.K A Text on Petro Chemicals New Delhi: Khanna Publishers, 2008. 375p. ; Petro Chemicals https://books.google.com.pk/books?id=6SO-uQEACAAJ&dq=a+textbook+on+petrochemicals+bhaskara+rao&hl=en&sa=X&redir_esc=y BK 0 0 0 0 REF REF REF 2021-06-12 0 661.8 BHA A (Shelf - 67F) 58590 2021-06-12 00:00:00 BK 0 0 0 0 REF REF REF 2019-11-14 776.00 0 661.8 BHA (Shelf - 66C) 57687 2025-11-28 00:00:00 BK