Cita APA

O'Gorman,, J. (2010). Reference sources for small and medium sized libraries. Ess Ess.

Citación estilo Chicago

O'Gorman,, Jack. Reference Sources for Small and Medium Sized Libraries. New Delhi: Ess Ess, 2010.

Cita MLA

O'Gorman,, Jack. Reference Sources for Small and Medium Sized Libraries. Ess Ess, 2010.