Cita APA (7th ed.)

Abdul Kalam, A. P. J. (2016). Beyond 2020 (1st.). Penguin.

Cita Chicago (17th ed.)

Abdul Kalam, A P J. Beyond 2020. 1st. Penguin, 2016.

Cita MLA (9th ed.)

Abdul Kalam, A P J. Beyond 2020. 1st. Penguin, 2016.