Nana Ratman. (1976). Peta geologi lembar Tolitoli, Sulawesi Utara: Geological map of the Tolitoli quadrangle, North Sulawesi. Bandung: Pusat Penelitian dan Pengembangan Geologi.
Chicago Style CitationNana Ratman. Peta Geologi Lembar Tolitoli, Sulawesi Utara: Geological Map of the Tolitoli Quadrangle, North Sulawesi. Bandung: Pusat Penelitian dan Pengembangan Geologi, 1976.
MLA CitationNana Ratman. Peta Geologi Lembar Tolitoli, Sulawesi Utara: Geological Map of the Tolitoli Quadrangle, North Sulawesi. Bandung: Pusat Penelitian dan Pengembangan Geologi, 1976.
Warning: These citations may not always be 100% accurate.