APA
Quano E A R, . (1983). Principles of Wastewater Treatment Vol-I: Biological Processes. Philippines: NATIONAL SERIVCE DEVELOPMENT BOARD.
Chicago
Quano E A R, . 1983. Principles of Wastewater Treatment Vol-I: Biological Processes. Philippines: NATIONAL SERIVCE DEVELOPMENT BOARD.
Harvard
Quano E A R, . (1983). Principles of Wastewater Treatment Vol-I: Biological Processes. Philippines: NATIONAL SERIVCE DEVELOPMENT BOARD.
MLA
Quano E A R, . Principles of Wastewater Treatment Vol-I: Biological Processes. Philippines: NATIONAL SERIVCE DEVELOPMENT BOARD. 1983.