Home › Authors › John A. McKinnon 👤 John A. McKinnon 3 books Books by John A. McKinnon Sunspot numbers, 1610-1985 Sunspot numbers, 1610-1985 1987 Solar-geophysical activity rep Solar-geophysical activity reports for September 7-24, 1977 and November 22, 1977 1982 Collected data reports for STI Collected data reports for STIP Interval II 1977