APA

Hayes-Roth F., Teknowledge, World Petroleum Congress (12th : 1987 26 abr/1 may : Houston) & Teknowledge.Expert systems applied to the petroleum insdustry - Upstream portion. : .

Chicago

Hayes-Roth Frederick, Teknowledge, World Petroleum Congress (12th : 1987 26 abr/1 may : Houston) and Teknowledge.Expert systems applied to the petroleum insdustry - Upstream portion. : .

Harvard

Hayes-Roth F., Teknowledge, World Petroleum Congress (12th : 1987 26 abr/1 may : Houston) and Teknowledge.Expert systems applied to the petroleum insdustry - Upstream portion. : .

MLA

Hayes-Roth Frederick, Teknowledge, World Petroleum Congress (12th : 1987 26 abr/1 may : Houston) and Teknowledge.: . .