by George Porter | .
by Anthony A. Albanese | .
by Michael Locke | .
by J.S.F.Barker | .
by T.W.Goodwin | .
by A.D. Johnson | .
by Erhard Gross | .
by Michael Locke,John | .
by R E Munn | .
by Peter B. Moens | .
by Paul Gyorgy | .
by Burr G.Atkinson | .
by Joachim F. Wohlwill | .
by Heinz Heckhausen | Heinz-Dieter Schmalt Klaus Schneider.
by Robert Plutchik | .
by R. F. Dillon | .
by Gordon W.Duncan | .
by Samuel H. Preston | .
by Peter R. Cox | .
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