"whelan, p m. "
questions and problems in pre-university physics: / p.m. whelan - ed. - uk : john murray 1974. - "vii, 208p.; 25 cm."
0 7195 2585 3
--
530. 76 whe
questions and problems in pre-university physics: / p.m. whelan - ed. - uk : john murray 1974. - "vii, 208p.; 25 cm."
0 7195 2585 3
--
530. 76 whe