American Public Health Association. (1990). Standard methods for the examination of water and wastewater, including bottom sediment and sludges. [s.n.].
Citazione stile Chigago Style (17a edizione)American Public Health Association. Standard Methods for the Examination of Water and Wastewater, Including Bottom Sediment and Sludges. [s.l.]: [s.n.], 1990.
Citatione MLA (9a ed.)American Public Health Association. Standard Methods for the Examination of Water and Wastewater, Including Bottom Sediment and Sludges. [s.n.], 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.