Templat:DSB
{{{last}}} (1970–80). "DSB". Dictionary of Scientific Biography. New York: Charles Scribner's Sons. ISBN 0684101149. Pemeliharaan CS1: Format tanggal (link)
{{{last}}} (1970–80). "DSB". Dictionary of Scientific Biography. New York: Charles Scribner's Sons. ISBN 0684101149. Pemeliharaan CS1: Format tanggal (link)