Gaya APA
EATON, A, D. (2005).
Standard Methods for The Examination of Water & Wastewater (21 ST. EDITION).
Maryland:
PORT CITY PRESS.
Gaya MLA
EATON, Andrew, D.
"Standard Methods for The Examination of Water & Wastewater".
21 ST. EDITION
Maryland:
PORT CITY PRESS,
2005.
FAKULTAS TEKNIK.