عنوان
پدید آورنده
موضوع
رده
TD 420 .W3
TD
420
.
W3
کتابخانه
محل استقرار
Wastewater treatment plant operator training course two; with visual aids
Washington
Water pollution Control Federation
1967
v, 154 p. : ill
WPCF Publication
no.14
"Prepared under the guidance of a special task force of the committee on personnal Advancement, by a demonstration Project. Supplement by 166 color slides
، Sewage disposal plants - Outlines, Syllabi, etc
TD
420
.
W3
NO
TI
NO
