Cooper D., Doran C., . (1991). Classical Methods Vol - 1 : Analytical Chemistry By Open Learning. Weinheim: John Wiley.
Cooper Derek, Doran Chris, . 1991. Classical Methods Vol - 1 : Analytical Chemistry By Open Learning. Weinheim: John Wiley.
Cooper Derek, Doran Chris, . Classical Methods Vol - 1 : Analytical Chemistry By Open Learning. Weinheim: John Wiley. 1991.