APA

Silva J. J. R. F. d., Williams R. J. P., . (1991). The biological chemistry of the elements. Oxford: Clarendon Press.

Chicago

Silva J J R Fraústo da, Williams R J P, . 1991. The biological chemistry of the elements. Oxford: Clarendon Press.

Harvard

Silva J. J. R. F. d., Williams R. J. P., . (1991). The biological chemistry of the elements. Oxford: Clarendon Press.

MLA

Silva J J R Fraústo da, Williams R J P, . The biological chemistry of the elements. Oxford: Clarendon Press. 1991.