Purushotham Tiwari. (2013). International encyclopaedia of library and information technology: V.3: Library and Information Science in digital age. APH Publishing.
Citação norma ChicagoPurushotham Tiwari. International Encyclopaedia of Library and Information Technology: V.3: Library and Information Science in Digital Age. New Delhi: APH Publishing, 2013.
Citação norma MLAPurushotham Tiwari. International Encyclopaedia of Library and Information Technology: V.3: Library and Information Science in Digital Age. APH Publishing, 2013.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.