Scientists Science 18 Biography 16 India 11 Presidents 9 Engineers 5 History 4 Abdul Kalam, A P J 3 Trials (Espionage) 3 Trials (Political crimes and offenses) 3 Engineering 2 Mathematics 2 Methodology 2 Numerical analysis 2 Officials and employees 2 Philosophy 2 ശാസ്ത്രം 2 25 Mahasasthraprathibhakal 1 370.113 03 N2.1 1 Abdul Kalam, A. P. J. (Avul Pakir Jainulabdeen), 1931-2015 1 African American women singers 1 Astrology 1 Astronautics 1 Astronomers 1 Astronomy 1 Authors, American 1 Authorship 1 BIOGRAPHY & AUTOBIOGRAPHY / Science & Technology 1 Biography, Collected 1 Biology 1