Singh, P. (1995). Holistic approach to sustainable development. M.D. Publication PVT.
Citazione stile Chigago Style (17a edizione)Singh, Pramod. Holistic Approach to Sustainable Development. New Delhi: M.D. Publication PVT, 1995.
Citatione MLA (9a ed.)Singh, Pramod. Holistic Approach to Sustainable Development. M.D. Publication PVT, 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.