Style de citation APA (7e éd.)

Willoughby, D. A. (2005). Horizontal directional drilling: Utility and pipeline applications (First edition.). McGraw-Hill Education.

Style de citation Chicago (17e éd.)

Willoughby, David A. Horizontal Directional Drilling: Utility and Pipeline Applications. First edition. New York, N.Y.: McGraw-Hill Education, 2005.

Style de citation MLA (8e éd.)

Willoughby, David A. Horizontal Directional Drilling: Utility and Pipeline Applications. First edition. McGraw-Hill Education, 2005.