APA
Dzienis L., . (2009). Sewage sludge and waste solids disposal systems in agricultural and industrial regions - selected problems. Olsztyn: Hard Publishing Company.
Chicago
Dzienis Lech, . 2009. Sewage sludge and waste solids disposal systems in agricultural and industrial regions - selected problems. Olsztyn: Hard Publishing Company.
Harvard
Dzienis L., . (2009). Sewage sludge and waste solids disposal systems in agricultural and industrial regions - selected problems. Olsztyn: Hard Publishing Company.
MLA
Dzienis Lech, . Sewage sludge and waste solids disposal systems in agricultural and industrial regions - selected problems. Olsztyn: Hard Publishing Company. 2009.