Gaya APA
Sawyer, C, N., McCartty, P, L. (1978).
Chemistry for Envirenmental Engineering (Edisi 3).
Singapore:
McGraw-Hill, Inc.
Gaya MLA
Sawyer, Claire, N., McCartty, Perry, L.
"Chemistry for Envirenmental Engineering".
Edisi 3
Singapore:
McGraw-Hill, Inc,
1978.
Text.