na INLIS000000000008401 Ind 0010-1118008401 Symphony of the earth UMBGROVE, J.H.F. J.H.F. Umbgrove Hague Martinus Nijhoff 1950 220 p. : ill. ; 27 cm. 220 p. : ill. ; 27 cm. 525UMBs Bibl.: p. 213-215.-- Index: p. 216-220. 525 EARTH 2108