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Be a friend to trees

By Lauber, Patricia. HarperCollins 1994 . 32 p. : col. ill. ; 21 x 26 cm. 0060215291

By Lauber, Patricia. HarperCollins 1994 . 32 p., col.ill. ; 20 cm. 0064451208

By Lauber, Patricia. HarperCollins 1996 . 32 p., col.ill.; 21 cm. 0060244070

By Lauber, Patricia. HarperCollins 1996 . 32 p., col.ill.; 20 cm. 0064451593