00558nam a2200205Ia 4500 20250508152926.0 008 250505s9999 xx 000 0 eng d Books to be hide in OPAC FEDL eng FEDL eng eng 001.4, FRI FEDL Friedrich L. W. Ed. 77388 Nature of physical knowledge Edinburgh Oliver and Boyd 1961 156p INR 12.8 Research HB 001.4, FRI 1339638 1339638 0 0 0 0 FEDL FEDL 2025-05-08 12.80 0 001.4, FRI EL0022085 2025-05-08 15:29:26 2025-05-08 HB