Gaya APA
Chhatwal, G.R.. (2001).
Encyclopaedia of World Great Scientists, Vol. 1-2 .
:
IG Library.
Gaya Chicago
Chhatwal, G.R..
Encyclopaedia of World Great Scientists, Vol. 1-2.
:
IG Library,
2001.
Electronic Resource.
Gaya MLA
Chhatwal, G.R..
Encyclopaedia of World Great Scientists, Vol. 1-2.
:
IG Library,
2001.
Electronic Resource.
Gaya Turabian
Chhatwal, G.R..
Encyclopaedia of World Great Scientists, Vol. 1-2.
:
IG Library,
2001.
Electronic Resource.