APA

American Petroleum Institute A., . (1994). Groundwater protection programs for petroleum refining and storage facilities: a guidance document. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 1994. Groundwater protection programs for petroleum refining and storage facilities: a guidance document. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (1994). Groundwater protection programs for petroleum refining and storage facilities: a guidance document. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Groundwater protection programs for petroleum refining and storage facilities: a guidance document. Washington: American Petroleum Institute, API. 1994.