APA

Ilyasov E., Ioanesian Y. R., World Petroleum Congress (12th : 1987 26 abr/1 may : Houston) & Ioanesian Y. R.Ultra deep drilling for the investigation of the earth's crust. : .

Chicago

Ilyasov E.P, Ioanesian Yu R, World Petroleum Congress (12th : 1987 26 abr/1 may : Houston) and Ioanesian Yu R.Ultra deep drilling for the investigation of the earth's crust. : .

Harvard

Ilyasov E., Ioanesian Y. R., World Petroleum Congress (12th : 1987 26 abr/1 may : Houston) and Ioanesian Y. R.Ultra deep drilling for the investigation of the earth's crust. : .

MLA

Ilyasov E.P, Ioanesian Yu R, World Petroleum Congress (12th : 1987 26 abr/1 may : Houston) and Ioanesian Yu R.: . .