APA (7e ed.) Bronvermelding

Abdul Kalam, A. P. J., & Singh, S. P. (2011). Target 3 billion: PURA: innovative solutions towards sustainable development. Penguin Books, India.

Chicago (17e ed.) Bronvermelding

Abdul Kalam, A. P. J., en Srijan Pal Singh. Target 3 Billion: PURA: Innovative Solutions Towards Sustainable Development. New Delhi: Penguin Books, India, 2011.

MLA (8e ed.) Bronvermelding

Abdul Kalam, A. P. J., en Srijan Pal Singh. Target 3 Billion: PURA: Innovative Solutions Towards Sustainable Development. Penguin Books, India, 2011.