http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
universal interface amplifier for coupling an echo sounder to a magnetic tape recorder
by Edmund P. Nunnallee and James H. Green.
"This investigation was supported by NSF Grant GH-66 under the Sea Grant Program."
Washington sea grant publication ; no. 70-3
Circular (University of Washington. Fisheries Research Institute) ; no. 70-7