Υδρόφωνο: Διαφορά μεταξύ των αναθεωρήσεων

* Unknown. (2005) [http://www.glossary.oilfield.slb.com/Display.cfm?Term=hydrophone Schlumberger Oilfield Glossary: Term 'hydrophone'] Retrieved Jan. 28, 2005.

 

{{Commons category|Hydrophones|Hydrophone}}

* [http://dosits.org/science/measurng/1.htm DOSITS ] Hydrophone introduction at Discovery of Sound in the Sea