APA

Chopra P. N., .Maulana Abul Kalam Azad. New Delhi: .

Chicago

Chopra Pran Nath, .Maulana Abul Kalam Azad. New Delhi: .

Harvard

Chopra P. N., .Maulana Abul Kalam Azad. New Delhi: .

MLA

Chopra Pran Nath, .New Delhi: . .