David M. Hartley (Q54438173)
researcher
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Current Data About David M. Hartley
(P21) (Q6581097)
(P31) (Q5)
(P106) (Q1650915)
(P108) (Q5120231)
(Q5547065)
(Q17681492)
(P734) (Q4496098)
(P735) (Q18057751)
other details
aliases David Hartley
description researcher

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