World geography today /
Helgren, David M.
World geography today / David M. Helgren and Robert J. Sager. - Austin [TX] : Holt, Rinehart and Winston : Harcourt Brace & Co., 2000. - xviii, A1-22, S1-17, 690 p. : il., mapas ; 29 cm.
0030544661
World geography today / David M. Helgren and Robert J. Sager. - Austin [TX] : Holt, Rinehart and Winston : Harcourt Brace & Co., 2000. - xviii, A1-22, S1-17, 690 p. : il., mapas ; 29 cm.
0030544661