Jaques, E. H. Field record Perak E.H Jaques - 1953 - 95 p. ill. , maps 35 cm. title from cover Subjects--Topical Terms: Geology--Field study--Perak--KamparGeology--Field study--Perak--TapahGeology--Field study--Perak--Tronoh Subjects--Geographic Terms: Tronoh (Perak)Kampar (Perak)Tapah (Perak)