Ayers, Allan C.. Worldscapes / Allan C. Ayers ... [et al.] ; general editor, T.H. Masterton. - 2nd ed. - Edinburgh : Oliver & Boyd, 1990. - 128 p. : ill. (some col.), col. maps ; 26 cm. ISBN: 0050040286 Subjects--Topical Terms: Geography.Geography--Textbooks LC Class. No.: G128