Poll, R., Boekhorst, P. t., & Abad Hiraldo, R. (1996). Measuring quality: International guidelines for performance measurement in academic libraries. K.G. Saur.
Lua i Stíl Chicago (17ú heag.)Poll, Roswitha, Peter te Boekhorst, agus Ramon Abad Hiraldo. Measuring Quality: International Guidelines for Performance Measurement in Academic Libraries. München: K.G. Saur, 1996.
Lua MLA (8ú heag.)Poll, Roswitha, et al. Measuring Quality: International Guidelines for Performance Measurement in Academic Libraries. K.G. Saur, 1996.
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