Hardage, B. A. (1983). Vertical seismic profiling. Geophysical Press Worldwide distributors, Expro Science Publications.
Čikaški stil citiranja (17. izdanje)Hardage, Bob Adrian. Vertical Seismic Profiling. London, Amsterdam, Netherlands: Geophysical Press Worldwide distributors, Expro Science Publications, 1983.
MLA način citiranja (9. izdanje)Hardage, Bob Adrian. Vertical Seismic Profiling. Geophysical Press Worldwide distributors, Expro Science Publications, 1983.
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