Geologic map of the Lerna Region (Ji-4) of Io / U.S. Department of the Interior, U.S. Geological Survey ; by James L. Whitford-Stark, Peter J. Mouginis-Mark, and James W. Head ; prepared for the National Aeronautics and Space Administration
Atlas of Jovian satellites, geologic series Miscellaneous investigations series ; map I-2055 Geological Survey (U.S.). Atlas of Jovian satellites. 1:5,000,000 geologic series ; Ji-4. Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-2055.
1 map : color ; 60 cm diam., on sheet 94 x 102 cm, folded in envelope 30 x 24 cm.
"Prepared on behalf of the Planetary Geology Program, Solar System Exploration Division, Office of Space Science, National Aeronautics andd Space Administration, under contract W-15,814 through grant NAGW to Arizona State University."