Integrated Program in Science Education for Development & National Science Development Board. (1981). IPSED modules for Leyte-Samar region. Published for NSDB by UP Science Education Center.
Cita Chicago (17th ed.)Integrated Program in Science Education for Development i National Science Development Board. IPSED Modules for Leyte-Samar Region. Quezon City: Published for NSDB by UP Science Education Center, 1981.
Cita MLA (9th ed.)Integrated Program in Science Education for Development i National Science Development Board. IPSED Modules for Leyte-Samar Region. Published for NSDB by UP Science Education Center, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.