: <[log in to unmask]> 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.