Stevenson, S. C. (2009). How to communicate more effectively with donors, members & volunteers. Stevenson, Inc.. https://doi.org/10.1002/9781118704363
Παραπομπή σε μορφή Chicago (17η εκδ.)Stevenson, Scott C. How to Communicate More Effectively with Donors, Members & Volunteers. Sioux City, Iowa: Stevenson, Inc., 2009. https://doi.org/10.1002/9781118704363.
Παραπομπή σε μορφή MLA (8th εκδ.)Stevenson, Scott C. How to Communicate More Effectively with Donors, Members & Volunteers. Stevenson, Inc., 2009. https://doi.org/10.1002/9781118704363.
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