[137907]   
LANGENHEIM, Jean H.
Botanical origin of fossil resin and its relation to forest history in northeastern Angola / Jean H. Langenheim. - Lisboa : Comp. de Diamantes de Angola, 1972. - p. 13-36 : il. ; 32 cm
Descritores: Angola | Geologia
Cota: S.A. 6253 A.|BN