APA
Steudel R., . (1977). Chemistry of the non-metals. Berlin: W. de Gruyter.
Chicago
Steudel Ralf, . 1977. Chemistry of the non-metals. Berlin: W. de Gruyter.
Harvard
Steudel R., . (1977). Chemistry of the non-metals. Berlin: W. de Gruyter.
MLA
Steudel Ralf, . Chemistry of the non-metals. Berlin: W. de Gruyter. 1977.