Elwood, S. A., Goodchild, M., & Sui, D. (2012). Researching volunteered geographic information: Spatial data, geographic research, and new social practice. Taylor & Francis Group.
Citação do estilo Chicago (17ª ed.)Elwood, Sarah A., Michael Goodchild, e Daniel Sui. Researching Volunteered Geographic Information: Spatial Data, Geographic Research, and New Social Practice. Philadelphia, PA: Taylor & Francis Group, 2012.
Citação MLA (9ª ed.)Elwood, Sarah A., et al. Researching Volunteered Geographic Information: Spatial Data, Geographic Research, and New Social Practice. Taylor & Francis Group, 2012.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.