APA
DUGGAL (B D), CHHABRA (C L), . (1984). Fundamentals of modern physics. Jalandhar: Shoban Nagin Chand and co.
Chicago
DUGGAL (B D), CHHABRA (C L), . 1984. Fundamentals of modern physics. Jalandhar: Shoban Nagin Chand and co.
Harvard
DUGGAL (B D), CHHABRA (C L), . (1984). Fundamentals of modern physics. Jalandhar: Shoban Nagin Chand and co.
MLA
DUGGAL (B D), CHHABRA (C L), . Fundamentals of modern physics. Jalandhar: Shoban Nagin Chand and co. 1984.