"whelan, p m. "
questions on principles of physics: / p.m. whelan - ed. - uk : john murray 1979. - "xi, 234p.; 24 cm."
0 7195 3661 8
530. whe
questions on principles of physics: / p.m. whelan - ed. - uk : john murray 1979. - "xi, 234p.; 24 cm."
0 7195 3661 8
530. whe