Petikan APA

United States. Environmental Protection Agency. Office of Research and Development., United States. Environmental Protection Agency. Office of Research and Monitoring., & National Environmental Research Center (Corvallis, O. (1972). Environmental protection technology series. Washington.

Petikan Gaya Chicago

United States. Environmental Protection Agency. Office of Research and Development., United States. Environmental Protection Agency. Office of Research and Monitoring, and Or.) National Environmental Research Center (Corvallis. Environmental Protection Technology Series. Washington, 1972.

Petikan MLA

United States. Environmental Protection Agency. Office of Research and Development., United States. Environmental Protection Agency. Office of Research and Monitoring, and Or.) National Environmental Research Center (Corvallis. Environmental Protection Technology Series. Washington, 1972.

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