. "Greenleaf, Robert" . _:Bf8cbef7d4944afed1ae149465cb44473 . "1904"^^ . . "Robert K. Greenleaf" . "1990"^^ . . "Greenleaf" . "Robert K." . "Greenleaf, Robert K. (1904-1990)" . . _:Bf8cbef7d4944afed1ae149465cb44473 . _:Bf8cbef7d4944afed1ae149465cb44473 . _:Bf8cbef7d4944afed1ae149465cb44473 "2023-05-23"^^ . _:Bf8cbef7d4944afed1ae149465cb44473 . _:Bf8cbef7d4944afed1ae149465cb44473 . _:Bf8cbef7d4944afed1ae149465cb44473 "13445572X" . _:Bf8cbef7d4944afed1ae149465cb44473 . _:Bf8cbef7d4944afed1ae149465cb44473 . _:Bf8cbef7d4944afed1ae149465cb44473 .