APA
(2002). McGraw hill encyaclopedia of science and technology vol-12. New Delhi: Tata McGraw Hill.
Chicago
2002. McGraw hill encyaclopedia of science and technology vol-12. New Delhi: Tata McGraw Hill.
Harvard
(2002). McGraw hill encyaclopedia of science and technology vol-12. New Delhi: Tata McGraw Hill.
MLA
McGraw hill encyaclopedia of science and technology vol-12. New Delhi: Tata McGraw Hill. 2002.
