_:B5b18153708aad420f2f1a5e9dbdbcb20 . _:B5b18153708aad420f2f1a5e9dbdbcb20 "2021-10-11"^^ . _:B5b18153708aad420f2f1a5e9dbdbcb20 "1990-11-29"^^ . _:B5b18153708aad420f2f1a5e9dbdbcb20 . _:B5b18153708aad420f2f1a5e9dbdbcb20 . _:B5b18153708aad420f2f1a5e9dbdbcb20 "07822912X" . _:B5b18153708aad420f2f1a5e9dbdbcb20 . _:B5b18153708aad420f2f1a5e9dbdbcb20 . _:B756586de6adf8c705122b2c7f2f9acd1 _:B3a393c02228b4c1ce192d06f3aa9e39f . _:B756586de6adf8c705122b2c7f2f9acd1 "1942"^^ . _:B756586de6adf8c705122b2c7f2f9acd1 _:B8ef7da1496c45da92c3b2cee336b998f . _:B8ef7da1496c45da92c3b2cee336b998f "Nijhoff" . _:B8ef7da1496c45da92c3b2cee336b998f . . _:B756586de6adf8c705122b2c7f2f9acd1 . . . "The pulse of the earth" . "en" . . _:B5b18153708aad420f2f1a5e9dbdbcb20 . . . "179"^^ . "The pulse of the earth / by J.H.F. Umbgrove ; with 6 partly coloured plates, 94 textfigures and 2 tables" . . _:B3a393c02228b4c1ce192d06f3aa9e39f "The Hague" . _:B3a393c02228b4c1ce192d06f3aa9e39f .