Volume I was updated in 1984. This is the 1984 Update of 1981. Volume II has all the valuable tables and calculations and was published in 1981. So this really is a complete set, as the 1984 is just an update of the 1981.
Volume I was updated in 1984. This is the 1984 Update of 1981. Volume II has all the valuable tables and calculations and was published in 1981. So this really is a complete set, as the 1984 is just an update of the 1981.
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