Cooper, E. A. (1921). Denitrification as a Means of Sewage Purification.
Citação norma ChicagoCooper, Evelyn Ashley. Denitrification As a Means of Sewage Purification. 1921.
MLA CitationCooper, Evelyn Ashley. Denitrification As a Means of Sewage Purification. 1921.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.