_:B17a3595626293f310c2f88a6b7daf0e5 . _:B17a3595626293f310c2f88a6b7daf0e5 . _:B17a3595626293f310c2f88a6b7daf0e5 "2023-05-22"^^ . _:B17a3595626293f310c2f88a6b7daf0e5 . _:B17a3595626293f310c2f88a6b7daf0e5 . _:B17a3595626293f310c2f88a6b7daf0e5 "068256442" . _:B17a3595626293f310c2f88a6b7daf0e5 . _:B17a3595626293f310c2f88a6b7daf0e5 . _:B17a3595626293f310c2f88a6b7daf0e5 . "Robert G." . "Robert G. Gilpin" . "Gilpin" . . "Gilpin, Robert G. (1930-)" . "1930"^^ . . _:B17a3595626293f310c2f88a6b7daf0e5 . . .