APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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