APA način citiranja (7. izdanje)
ebrary, Inc, & Perkins, W. E. (2011). Nonprofit and charitable sectors: Background and issues. Nova Science Publisher's.
Čikaški stil citiranja (17. izdanje)
ebrary, Inc, i William E. Perkins. Nonprofit and Charitable Sectors: Background and Issues. Hauppauge, NY: Nova Science Publisher's, 2011.
MLA način citiranja (9. izdanje)
ebrary, Inc, i William E. Perkins. Nonprofit and Charitable Sectors: Background and Issues. Nova Science Publisher's, 2011.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.