F A Skinner. (1986). Nitrogen fixation with non legumes: The third international symposium on nitrogen fixation non legumes Helsinki, 2-8 september 1984. Helsinski: Martinus Nijhoff.
Chicago Style citaatF A Skinner. Nitrogen Fixation With Non Legumes: The Third International Symposium On Nitrogen Fixation Non Legumes Helsinki, 2-8 September 1984. Helsinski: Martinus Nijhoff, 1986.
MLA citatieF A Skinner. Nitrogen Fixation With Non Legumes: The Third International Symposium On Nitrogen Fixation Non Legumes Helsinki, 2-8 September 1984. Helsinski: Martinus Nijhoff, 1986.
Let op: Deze citaties zijn niet altijd 100% accuraat.