APA

American Petroleum Institute A., . (2004). Risk-based screening levels for the protection of livestock exposed to petroleum hydrocarbons. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 2004. Risk-based screening levels for the protection of livestock exposed to petroleum hydrocarbons. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (2004). Risk-based screening levels for the protection of livestock exposed to petroleum hydrocarbons. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Risk-based screening levels for the protection of livestock exposed to petroleum hydrocarbons. Washington: American Petroleum Institute, API. 2004.