APA Style
BENEFIELD, L, D., RANDALL, C, W. (1980).
Biological process design for wastewater treatment (1).
Englewood Clift:
Prentice Hall.
MLA Style
BENEFIELD, LARRY, D.., RANDALL, CLIFFORD, W..
"Biological process design for wastewater treatment".
1
Englewood Clift:
Prentice Hall,
1980.
Text.