APA Citation

Estados Unidos. Enviromental Protection Agency. (1973). Nitrification and denitrification facilities watewater tratment. Boston, Mass.: E.P.A..

Chicago Style Citation

Estados Unidos. Enviromental Protection Agency. Nitrification and Denitrification Facilities Watewater Tratment. Boston, Mass.: E.P.A., 1973.

MLA Citation

Estados Unidos. Enviromental Protection Agency. Nitrification and Denitrification Facilities Watewater Tratment. Boston, Mass.: E.P.A., 1973.

Warning: These citations may not always be 100% accurate.