Mondo Magnets: 40 Attractive (and Repulsive) Devices and DemonstrationseBookMondo Magnets: 40 Attractive (and Repulsive) Devices and DemonstrationskaryaFred JeffersPenilaian: 2 dari 5 bintang2/5Simpan Mondo Magnets: 40 Attractive (and Repulsive) Devices and Demonstrations untuk nanti