Sunspot changes and weather changes,
by H. H. Clayton.
APA Citation
Clayton, H. Helm. (1946). Sunspot changes and weather changes. Washington: Smithsonian Institution.
MLA Citation
Clayton, Henry Helm, 1861-1946. Sunspot Changes And Weather Changes. Washington: Smithsonian Institution, 1946.
Warning: These citations may not always be complete (especially for serials).