数量4 v. : ill. (some col.) , maps (some col.)
一般注記At head of title: The Democratic Socialist Republic of Sri Lanka, Ceylon Electricity Board."MPN CR (3) 87-122"--Cover
書誌注記v. 1. Main report -- v. 2. Appendix I : Geology -- v. 3. Appendix II : Hydrology, Appendix III : Hydrology planning, Appendix IV : Dam engineering, Appendix V : Implementation schedule and cost estimates, Appendix VI : Project evaluation -- v. 4. Data book, drilling core log