RT Journal Article
SR Electronic
T1 Perspectives on the Promise of the Present
JF Science
JO Science
FD American Association for the Advancement of Science
SP 1149
OP 1150
DO 10.1126/science.165.3898.1149
VO 165
IS 3898
A1 Berl, Walter G.
YR 1969
UL http://science.sciencemag.org/content/165/3898/1149.abstract
AB