MARA, D. (1976). Sewage Treatment In Hot Climates Duncan Mara. John Wiley & Sons.
Chicago Style aipamenaMARA, Duncan. Sewage Treatment In Hot Climates Duncan Mara. John Wiley & Sons, 1976.
MLA aipamenaMARA, Duncan. Sewage Treatment In Hot Climates Duncan Mara. John Wiley & Sons, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.