Gaya APA

Valentinov, V., Iliopoulos, C. (2013). Economic Theories of Nonprofits and Agricultural Cooperatives Compared:New Perspectives for Nonprofit Scholars ((2013), 42(1)). USA: SAGE.

Gaya MLA

Valentinov, Vladislav., Iliopoulos, Constantine. "Economic Theories of Nonprofits and Agricultural Cooperatives Compared:New Perspectives for Nonprofit Scholars". (2013), 42(1) USA: SAGE, 2013. e-journal.