Zafra, E. R. (1991). The utilization of print materials for coffee technology transfer and the farmers' awareness, knowledge, attitude, and practice on coffee technologies.
Čikaški stil citiranja (17. izdanje)Zafra, Eduardo R. The Utilization of Print Materials for Coffee Technology Transfer and the Farmers' Awareness, Knowledge, Attitude, and Practice on Coffee Technologies. 1991.
MLA način citiranja (9. izdanje)Zafra, Eduardo R. The Utilization of Print Materials for Coffee Technology Transfer and the Farmers' Awareness, Knowledge, Attitude, and Practice on Coffee Technologies. 1991.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.