APA

American Petroleum Institute A., . (2015). Managing environmental aspects associated with exploration and production operations including hydraulic fracturing. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2015. Managing environmental aspects associated with exploration and production operations including hydraulic fracturing. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2015). Managing environmental aspects associated with exploration and production operations including hydraulic fracturing. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Managing environmental aspects associated with exploration and production operations including hydraulic fracturing. Washington: American Petroleum Institute, API. 2015.