Authors: Hal Marcovitz

  • Vasco Nunez De Balboa and the Discovery of the South Sea (Explorers of New Worlds) — Hal Marcovitz

    Vasco Nunez De Balboa and the Discovery of the South Sea (Explorers of New Worlds) — Hal Marcovitz

  • Sacagewea Guide for the Lewis and Clark Expedition — Hal Marcovitz

    Sacagewea Guide for the Lewis and Clark Expedition — Hal Marcovitz