Gaya APA
Eliassen, R. (1978).
Wastewater engineering , collection treatment disposal (1978).
:
New Delhi : Tata McGraw Hill Publ Co.,.
Gaya MLA
Eliassen, Rolf.
"Wastewater engineering , collection treatment disposal".
1978
:
New Delhi : Tata McGraw Hill Publ Co.,,
1978.
Text.