Gaya APA
Dominic, F., Joachim, S. (2010).
Grey literature in library and information studies .
Berlin, Germany:
K. G. Saur.
Gaya MLA
Farace, Dominic., Schöpfel, Joachim.
"Grey literature in library and information studies".
Berlin, Germany:
K. G. Saur,
2010.
Electronic Resource.