Pettersson, R. (2013). Predecessors & pioneers. Institute for Infology.
Cita Chicago Style (17a ed.)Pettersson, Rune. Predecessors & Pioneers. Tullinge: Institute for Infology, 2013.
Cita MLA (9a ed.)Pettersson, Rune. Predecessors & Pioneers. Institute for Infology, 2013.
Precaución: Estas citas no son 100% exactas.