http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
AN/PRS-7 mine detector : MOS 12B, combat engineer, skill level I
Combat engineer, skill level I, MOS 12B; student lesson AN/PRS-7 mine detector
Combat engineer, skill level 1, MOS 12B; student lesson AN/PRS-7 mine detector
Combat engineer, skill level one, MOS 12B; student lesson AN/PRS-7 mine detector
prepared by United States Army Engineer School for U.S. Army Reserve Schools.