Gaya APA
Wright, Forrest B.. (1977).
Rural water supply and sanitation .
:
Robert E. Krieger.
Gaya Chicago
Wright, Forrest B..
Rural water supply and sanitation.
:
Robert E. Krieger,
1977.
Text.
Gaya MLA
Wright, Forrest B..
Rural water supply and sanitation.
:
Robert E. Krieger,
1977.
Text.
Gaya Turabian
Wright, Forrest B..
Rural water supply and sanitation.
:
Robert E. Krieger,
1977.
Print.