Defourny, J., Simon, M., & Adam, S. (2002). The co-operative movement in Belgium: Perspectives and prospects. Bruxelles: Ed. Luc Pire.
Lua i Stíl Chicago (17ú heag.)Defourny, Jacques, Michel Simon, agus Sophie Adam. The Co-operative Movement in Belgium: Perspectives and Prospects. Bruxelles: Ed. Luc Pire, 2002.
Lua MLA (8ú heag.)Defourny, Jacques, et al. The Co-operative Movement in Belgium: Perspectives and Prospects. Bruxelles: Ed. Luc Pire, 2002.
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