Text ( visual ) : unmediated Introductory matrix algebra / Keith Tinkler. -- Norwich : Geo Books , [1987?]. -- 58 p. : ill. ; 21 cm. -- (Concepts and techniques in modern geography ; no. 48). -- Cover title ; Includes bibliographical references (p. 49-51). -- ISBN 0860942244 ; (BA13805390) ; https://ci.nii.ac.jp/ncid/BA13805390 Author Heading(s): Tinkler, K. J.. -- Classification(s): NDC8 : 411.3 ; NDC8 : 290.19 ; LCC : QA188 ; DC20 : 512.9/434. -- Subject Heading(s): LCSH : Matrices