Gaya APA

Engineers, S, O, P., (SPE), . (1986). Deep drilling and production symposium 1986. April 6 8 Amarillo Civic Center, Texas (1986). : Texas : SPE,.

Gaya MLA

Engineers, Society, Of, Petroleum., (SPE), . "Deep drilling and production symposium 1986. April 6 8 Amarillo Civic Center, Texas". 1986 : Texas : SPE,, 1986. Text.