Antarctica 1989

Relief shown by contours and form lines. Includes text, bibliographical references, location and index maps.Color;Scale [ca. 1:7,800,000]. Vertical scale [ca. 1:405,000]. Vertical exaggeration 20:1. ; azimuthal equal area proj. (W 180⁰--E 180⁰/S 60⁰--S 90⁰). Scale [ca. 1:16,500,000]. Vertical scale [ca. 1:800,000]. Vertical exaggeration 20:1. ; azimuthal equal area proj. (W 180⁰--E 180⁰/S 60⁰--S 90⁰)