Ritchie, A., & Walker, C. (2007). Continuing professional development: Pathways to leadership in the library and information world. K.G. Saur.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRitchie, Ann, और Clare Walker. Continuing Professional Development: Pathways to Leadership in the Library and Information World. Munchen: K.G. Saur, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRitchie, Ann, और Clare Walker. Continuing Professional Development: Pathways to Leadership in the Library and Information World. K.G. Saur, 2007.
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