Additional ordering information or asSistance may be obtained by writing to the NTIS, Attention: Customer Service, or by calli (703) 487-4660. Reference citations with no availability codes may be avaiflable at the location cited or in a library. BASIC REFERENCES 1. “The Debate Over the Hydrogen Bomb," Scientific American, No. 4 H.F. York October 1975 Pol. 233, 2. Environmental Radioactivity, Second Edition M. Eisenbud Academic Press, New York 1973 3. Bikini-Enewetak Studies, 1964. Part 1 -- Ecological ObserWYations A.D. Welander et al. Laboratory of Radiation Biology University of Washington 15 September 1966 UWFL 93 4. Report of the Commander, Task Group 7.1, March-May 1954, Operation 5. Task Group 7.1 June 1954 Ref. Copy: NTIS as AD 995 017* Completion Report (U) Holmes and Narver, Inc. 1954 (Al19) AD A995 081* 6. CASTLE WT-940 EX History of Operation Greenhouse 1948-1951 E.R. Quesada Joint Task Force 3 December 1951 WI-47 (AQ2) AD 740 867* *Available from NTIS; order number appears before the asterisk. **Available at DOE CIC. ***NOt available. 414