Our growing world
D. C. Heath
Lucy Sprague Mitchell and Dorothy Stall ; educational consultant Agnes Snyder ; illustrator Kurt Wiese
D.C. Heath c1945 Our growing world
所蔵館12館
Lucy Sprague Mitchell and Margaret Wise Brown ; educational consultant Blanche Kent Verbeck ; illustrator Anne Fleur
D.C. Heath 1944 Our growing world
所蔵館10館
authors, Lucy Sprague Mitchell and Margaret Wise Brown ; educational consultant, Blanche Kent Verbeck ; illustrator, Clare Bice