Clarke, Charles A guide to the pitcher plants of Sabah / Charles Clarke ; with photographs by Charles Clarke ... [et al.] - Kota Kinabalu : Natural History Publications (Borneo), 2001 - iii, 40 p. : ill. ; 26 cm. ISBN: 983812057x RM28.00 Subjects--Topical Terms: Nepenthes--SabahPitcher plants--Sabah