APA-ийн эшлэл(7 дахь хэвлэлт)
Fredricks, L. (2010). The ask: How to ask for support for your nonprofit cause, creative project, or business venture. Jossey-Bass.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Fredricks, Laura. The Ask: How to Ask for Support for Your Nonprofit Cause, Creative Project, or Business Venture. San Francisco: Jossey-Bass, 2010.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Fredricks, Laura. The Ask: How to Ask for Support for Your Nonprofit Cause, Creative Project, or Business Venture. Jossey-Bass, 2010.
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