Contour lines
By: Alexander R. Grime ; ill. by Stan Morton.
Series: Map concepts and skills : -- no. 3
Publisher: Longview House; distributed by Clarke, Irwin]
Published: 1977
Place of publication: Bath, Ont; [Toronto
Language: eng
Number of pages: 11
Subjects: Contours (Cartography); Topographic maps.
Notes: For use in schools.