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Biology of wastewater treatment / N.F. Gray.

by Gray, N. F.

Call number: 628.351 G781B 1989 Material type: Text Text; Format: print ; Literary form: Not fiction Publication details: New York : Oxford University Press, 1989Availability: Items available for loan: สำนักวิทยบริการ (Center) (1) Call number: 628.351 G781B 1989.

Water technology: an introduction for environmental scientists and engineers / Gray N F

by Gray, N. F.

Call number: 628.1 G73W 2000 Material type: Text Text; Format: print ; Literary form: Not fiction Publication details: New Delhi : Viva Books Private, 2000Availability: Items available for loan: สำนักวิทยบริการ (Center) (1) Call number: 628.1 G73W 2000.

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