In 1981 he was elected president of the U.S. National Academy of Sciences and was re-elected in 1987, serving for a total of 12 years.
Re-elected in 1987, he served for a total of 12 years. In 1981 he was elected president of the U.S. National Academy of Sciences.
In 1981 he was elected president of the U.S. National Academy of Sciences. Re-elected in 1987, he served for a total of 12 years.
In 1981 he was elected president of the U.S. National Academy of Sciences. Re-elected in 1987, he served for a total of 12 years.