Philippines. Center for Nonconventional Energy Development. (1980). The national nonconventional energy resources development program: Progress report. Noncon Center.
Čikaški stil citiranja (17. izdanje)Philippines. Center for Nonconventional Energy Development. The National Nonconventional Energy Resources Development Program: Progress Report. Metro Manila: Noncon Center, 1980.
MLA način citiranja (9. izdanje)Philippines. Center for Nonconventional Energy Development. The National Nonconventional Energy Resources Development Program: Progress Report. Noncon Center, 1980.
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