Gaya APA
PETTYJOHN, wayne A.. (1972).
Water Quality In A Stressed Environment Readings In Environmental Hydrology .
New York:
McGRAW-HILL BOOK COMPANY.
Gaya Chicago
PETTYJOHN, wayne A..
Water Quality In A Stressed Environment Readings In Environmental Hydrology.
New York:
McGRAW-HILL BOOK COMPANY,
1972.
Teks.
Gaya MLA
PETTYJOHN, wayne A..
Water Quality In A Stressed Environment Readings In Environmental Hydrology.
New York:
McGRAW-HILL BOOK COMPANY,
1972.
Teks.
Gaya Turabian
PETTYJOHN, wayne A..
Water Quality In A Stressed Environment Readings In Environmental Hydrology.
New York:
McGRAW-HILL BOOK COMPANY,
1972.
Teks.