Gaya APA
Standard Methods For The Examination Of Water And Wastewater. (1971).
:
.
Gaya Chicago
Standard Methods For The Examination Of Water And Wastewater.
-.
:
,
1971.
.
Gaya MLA
Standard Methods For The Examination Of Water And Wastewater.
-.
:
,
1971.
.
Gaya Turabian
Standard Methods For The Examination Of Water And Wastewater.
:
,
1971.
.