APA-čujuhus (7. p.)
Hessenius, B. (2007). Hardball lobbying for nonprofits: Real advocacy for nonprofits in the new century. Palgrave Macmillan.
Chicago-čujuhus (17. p.)
Hessenius, Barry. Hardball Lobbying for Nonprofits: Real Advocacy for Nonprofits in the New Century. New York: Palgrave Macmillan, 2007.
MLA-čujuhus (9. p.)
Hessenius, Barry. Hardball Lobbying for Nonprofits: Real Advocacy for Nonprofits in the New Century. Palgrave Macmillan, 2007.
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