Abdul Kalam, A. P. J. (2016). Beyond 2020 (1st.). Penguin.
Chicago Style (17th ed.) CitationAbdul Kalam, A P J. Beyond 2020. 1st. Penguin, 2016.
MLA citiranjeAbdul Kalam, A P J. Beyond 2020. 1st. Penguin, 2016.
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