Cita APA (7a ed.)

Farace, D. J., & Schöpfel, J. (2010). Grey literature in library and information studies. de Gruyter Saur.

Cita Chicago Style (17a ed.)

Farace, Dominic J., y Joachim Schöpfel. Grey Literature in Library and Information Studies. Berlin New York: de Gruyter Saur, 2010.

Cita MLA (9a ed.)

Farace, Dominic J., y Joachim Schöpfel. Grey Literature in Library and Information Studies. de Gruyter Saur, 2010.