You can purchase a hard copy of MARSSIM from the
National Technical Information Service (NTIS) sales
desk or website. Its NTIS document number is
PB97-117659.
Sales Desk
Hours: 8:30 AM to 6:00 PM EST, Monday-Friday
Phone: 800-553-6847
TDD (Hearing impaired only): 703-487-4639
NTIS Website
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Search by "MARSSIM" and select the most recent
version from the list returned