Citazione Stile APA (7a Edizione)

Sharma ,Prem V. (1997). Environmental and engineering geophysics. Univ. pr..

Citazione stile Chigago Style (17a edizione)

Sharma ,Prem V. Environmental and Engineering Geophysics. Cambridge: Univ. pr., 1997.

Citatione MLA (9a ed.)

Sharma ,Prem V. Environmental and Engineering Geophysics. Univ. pr., 1997.