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Free to a good home ... DVD
oclc no. 58447941
Making America's maps [DVD] / [Mark Barber, writer and producer].
[Sioux Falls, S.D.] : USGS EROS/NMD Data Center, 1995.
1 videodisc (10 min.) : ǂb sd., col. ; ǂc 4 3/4 in.