Summaries of Environmental Laws Administered by the Environmental Protection Agency.

MLA

Library of Congress. Summaries of Environmental Laws Administered by the Environmental Protection Agency. [Place of publication not identified] : [publisher not identified], 1991-1992.

APA

Library of Congress. (1991). Summaries of Environmental Laws Administered by the Environmental Protection Agency. [Place of publication not identified] : [publisher not identified].

Chicago

Library of Congress. Summaries of Environmental Laws Administered by the Environmental Protection Agency. [Place of publication not identified] : [publisher not identified], 1991-1992.