Gaya APA

Institute, A, P. (1994). Repairing Crude Oil, Liquefied Petroleum Gas, and Product Pipelines (1994). : Washington: API,.

Gaya MLA

Institute, American, Petroleum. "Repairing Crude Oil, Liquefied Petroleum Gas, and Product Pipelines". 1994 : Washington: API,, 1994. Text.