Citazione Stile APA (7a Edizione)

Duvall, W. I., & Aggson, J. R. (1979). Least squares calculation of horizontal stress from more than three diametral deformations in vertical boreholes. Dept. of the Interior, Bureau of Mines.

Citazione stile Chigago Style (17a edizione)

Duvall, Wilbur I., e James R. Aggson. Least Squares Calculation of Horizontal Stress from More than Three Diametral Deformations in Vertical Boreholes. [Washington]: Dept. of the Interior, Bureau of Mines, 1979.

Citatione MLA (9a ed.)

Duvall, Wilbur I., e James R. Aggson. Least Squares Calculation of Horizontal Stress from More than Three Diametral Deformations in Vertical Boreholes. Dept. of the Interior, Bureau of Mines, 1979.