Woodget B. W., Cooper D., . (1991). Samples and Standards : Analytical Chemistry By Open Learning. Weinheim: John Wiley.
Woodget B W, Cooper Derek, . 1991. Samples and Standards : Analytical Chemistry By Open Learning. Weinheim: John Wiley.
Woodget B W, Cooper Derek, . Samples and Standards : Analytical Chemistry By Open Learning. Weinheim: John Wiley. 1991.