Gaya APA

Silva, J, J, R, F, D., Williams, R, J, P. (1993). The biological chemistry of the element : the inorganic chemistry of life . Oxford: PT.ELEX MEDIA KOMPUTINDO.

Gaya MLA

Silva, J., J., R., Frausto, Da., Williams, R., J., P.. "The biological chemistry of the element : the inorganic chemistry of life". Oxford: PT.ELEX MEDIA KOMPUTINDO, 1993. Text.