Gaya APA

WAHJUDIN, . (2001). Peta cekungan air tanah P. Sulawesi bagian utara (Sulawesi I) skala 1:250.000 lembar 2014, 2015, 2114, 2115, 2116, 2117, 2214, 2215, 2216, 2217, 2314, . : DTLGKP.

Gaya MLA

WAHJUDIN, . "Peta cekungan air tanah P. Sulawesi bagian utara (Sulawesi I) skala 1:250.000 lembar 2014, 2015, 2114, 2115, 2116, 2117, 2214, 2215, 2216, 2217, 2314,". : DTLGKP, 2001. Laporan.