APA
Chopra P. N. (., .Who's who of indian martyrs; Vol-I. New Delhi: Ministry of Education and Youth Services.
Chicago
Chopra P N (ed), .Who's who of indian martyrs; Vol-I. New Delhi: Ministry of Education and Youth Services.
Harvard
Chopra P. N. (., .Who's who of indian martyrs; Vol-I. New Delhi: Ministry of Education and Youth Services.
MLA
Chopra P N (ed), .New Delhi: Ministry of Education and Youth Services. .