APA

American Petroleum Institute A., . (1960). American standard method for measurement of petroleum liquid hydrocarbons by positive displacement meter. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 1960. American standard method for measurement of petroleum liquid hydrocarbons by positive displacement meter. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (1960). American standard method for measurement of petroleum liquid hydrocarbons by positive displacement meter. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . American standard method for measurement of petroleum liquid hydrocarbons by positive displacement meter. Washington: American Petroleum Institute, API. 1960.