Ranjan,Piyush. (2014). Reference and information services: An introduction. Random.
Stile di citazione ChicagoRanjan,Piyush. Reference and Information Services: An Introduction. New Delhi: Random, 2014.
Citazione MLARanjan,Piyush. Reference and Information Services: An Introduction. Random, 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.