Gaya APA
Water quality and treatment: a handbook of community water supplies. (1990).
New York:
Mac Graw-Hill.
Gaya Chicago
Water quality and treatment: a handbook of community water supplies.
text.
New York:
Mac Graw-Hill,
1990.
Tesis.
Gaya MLA
Water quality and treatment: a handbook of community water supplies.
text.
New York:
Mac Graw-Hill,
1990.
Tesis.
Gaya Turabian
Water quality and treatment: a handbook of community water supplies.
New York:
Mac Graw-Hill,
1990.
Tesis.