APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, & Watkinson, S. (2009). Issues in ophthalmic practice: Current and future challenges. M&K Update Ltd..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, ба Sue Watkinson. Issues in Ophthalmic Practice: Current and Future Challenges. Cumbria [England]: M&K Update Ltd., 2009.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, ба Sue Watkinson. Issues in Ophthalmic Practice: Current and Future Challenges. M&K Update Ltd., 2009.