APA

American Petroleum Institute A., . (1987). Shop testing of automatic liquid level gages. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 1987. Shop testing of automatic liquid level gages. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (1987). Shop testing of automatic liquid level gages. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Shop testing of automatic liquid level gages. Washington: American Petroleum Institute, API. 1987.