APA
U E M, . (1992). How things work ; Vol-II. New Delhi: Harper Collins.
Chicago
U E M, . 1992. How things work ; Vol-II. New Delhi: Harper Collins.
Harvard
U E M, . (1992). How things work ; Vol-II. New Delhi: Harper Collins.
MLA
U E M, . How things work ; Vol-II. New Delhi: Harper Collins. 1992.