Παραπομπή σε μορφή APA (7η εκδ.)

Zafra Meja̕ Carlos Alfonso, Mendoza Castaęda Franklin Andrš, Montoya Varela Paula Alejandra, & Universidad Nacional de Colombia. Facultad de Ingeniera̕. A methodology for landfill location using geographic information systems, a Colombian regional case.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zafra Meja̕ Carlos Alfonso, Mendoza Castaęda Franklin Andrš, Montoya Varela Paula Alejandra, και Universidad Nacional de Colombia. Facultad de Ingeniera̕. A Methodology for Landfill Location Using Geographic Information Systems, a Colombian Regional Case.

Παραπομπή σε μορφή MLA (9th εκδ.)

Zafra Meja̕ Carlos Alfonso, et al. A Methodology for Landfill Location Using Geographic Information Systems, a Colombian Regional Case.