Citazione Stile APA (7a Edizione)

Hudson, J. A. (1992). Rock engineering systems: Theory and practice. Ellis Horwood.

Citazione stile Chigago Style (17a edizione)

Hudson, John A. Rock Engineering Systems: Theory and Practice. New York: Ellis Horwood, 1992.

Citatione MLA (9a ed.)

Hudson, John A. Rock Engineering Systems: Theory and Practice. Ellis Horwood, 1992.