APA

Nieto Freyre O., Petrotech Peruana, INGEPET '99 I. S. (. . 1. O. 2. . L. P. & Petrotech Peruana.Evaluating of fracturing results using gelled oil in offshore northwest Peru. : .

Chicago

Nieto Freyre Oscar, Petrotech Peruana, INGEPET '99 International Seminar (3° 1999 Oct 26-29 Lima Perú) and Petrotech Peruana.Evaluating of fracturing results using gelled oil in offshore northwest Peru. : .

Harvard

Nieto Freyre O., Petrotech Peruana, INGEPET '99 I. S. (. . 1. O. 2. . L. P. and Petrotech Peruana.Evaluating of fracturing results using gelled oil in offshore northwest Peru. : .

MLA

Nieto Freyre Oscar, Petrotech Peruana, INGEPET '99 International Seminar (3° 1999 Oct 26-29 Lima Perú) and Petrotech Peruana.: . .