Walker, P. M. B., & Walker, P. M. B. (1999). Chambers dictionary of science and technology (New ed.). Edinburgh: Chambers.
Παραπομπή Chicago StyleWalker, P. M. B., and Peter M. B. Walker. Chambers Dictionary of Science and Technology. New ed. Edinburgh: Chambers, 1999.
Παραπομπή MLAWalker, P. M. B., and Peter M. B. Walker. Chambers Dictionary of Science and Technology. New ed. Edinburgh: Chambers, 1999.
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