Tully, P. C. (1975). Isotopic purification of helium by differential distillation below the lambda-point. U.S. Dept. of the Interior.
Chicago Style (17th ed.) CitationTully, Philip C. Isotopic Purification of Helium by Differential Distillation Below the Lambda-point. [Washington, D.C.]: U.S. Dept. of the Interior, 1975.
MLA (9th ed.) CitationTully, Philip C. Isotopic Purification of Helium by Differential Distillation Below the Lambda-point. U.S. Dept. of the Interior, 1975.
Warning: These citations may not always be 100% accurate.