Παραπομπή APA

Abdul Kalam, A., & Sadasivan, M. (2007). Ajayyamaya aatmachaithanyam = Indomitable spirit (2nd ed.). D C Books.

Παραπομπή Chicago Style

Abdul Kalam, A.P.J, και M.P Sadasivan. Ajayyamaya Aatmachaithanyam = Indomitable Spirit. 2nd ed. Kottayam: D C Books, 2007.

Παραπομπή MLA

Abdul Kalam, A.P.J, και M.P Sadasivan. Ajayyamaya Aatmachaithanyam = Indomitable Spirit. 2nd ed. D C Books, 2007.