APA引文

Polanka, S. (2011). No shelf required: E-books in libraries. Ess Ess Publications.

Chicago Edition Citation

Polanka, Sue. No Shelf Required: E-books in Libraries. New Delhi: Ess Ess Publications, 2011.

MLA引文

Polanka, Sue. No Shelf Required: E-books in Libraries. Ess Ess Publications, 2011.

警告：这些引文格式不一定是100％准确.