Holdsworth, David. The Sepik, Papua New Guinea / David Holdsworth. - Port Moresby : Robert Brown & Associates, 1974. - [32] p. : chiefly col. ill. ISBN: 0851796958 : $1.50 Nat. Bib. No.: Aus Subjects--Geographic Terms: Sepik River Region (Papua New Guinea)--Description and travel--Views. Dewey Class. No.: 995