APA

Curran F., Esso, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) & ESSO.Effective training through the application of modern training technology. : .

Chicago

Curran F.R, Esso, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and ESSO.Effective training through the application of modern training technology. : .

Harvard

Curran F., Esso, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and ESSO.Effective training through the application of modern training technology. : .

MLA

Curran F.R, Esso, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and ESSO.: . .