Gaya APA
VISSCHER, J.T.. (1987).
SLOW SAND FILTRATION for community water supplly: planning, design, construction and maintenance .
The Hague:
International Reference Centre for Community water supply and Sanitation n.
Gaya Chicago
VISSCHER, J.T..
SLOW SAND FILTRATION for community water supplly: planning, design, construction and maintenance.
The Hague:
International Reference Centre for Community water supply and Sanitation n,
1987.
Text.
Gaya MLA
VISSCHER, J.T..
SLOW SAND FILTRATION for community water supplly: planning, design, construction and maintenance.
The Hague:
International Reference Centre for Community water supply and Sanitation n,
1987.
Text.
Gaya Turabian
VISSCHER, J.T..
SLOW SAND FILTRATION for community water supplly: planning, design, construction and maintenance.
The Hague:
International Reference Centre for Community water supply and Sanitation n,
1987.
Print.