Gale, B. (1987). The case of the multi-purpose group. Solidaridad Publishing House.
Čikaški stil citiranja (17. izdanje)Gale, Bruce. The Case of the Multi-purpose Group. Manila: Solidaridad Publishing House, 1987.
MLA način citiranja (9. izdanje)Gale, Bruce. The Case of the Multi-purpose Group. Solidaridad Publishing House, 1987.
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