Puhakka, P. (1974). Level structure of 157Tb from the decay of 157Dy. Dept. of Physics, University of Helsinki.
Chicago-referens (17:e uppl.)Puhakka, Pertti. Level Structure of 157Tb from the Decay of 157Dy. Helsinki: Dept. of Physics, University of Helsinki, 1974.
MLA-referens (8:e uppl.)Puhakka, Pertti. Level Structure of 157Tb from the Decay of 157Dy. Dept. of Physics, University of Helsinki, 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.