Sanford, F., & Fund, A. (1936). Influence of planetary configurations upon the frequency of visible sun spots. Washington, Wash: Smithsonian Inst.
Chicago ZitierstilSanford, Fernando, und Arthur Fund. Influence of Planetary Configurations Upon the Frequency of Visible Sun Spots. Washington, Wash: Smithsonian Inst, 1936.
MLA ZitierstilSanford, Fernando, und Arthur Fund. Influence of Planetary Configurations Upon the Frequency of Visible Sun Spots. Washington, Wash: Smithsonian Inst, 1936.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.