APA
Wilkinson RE, Duncan RR, . (1993). Interaction of hydrogen (H+) and manganese (Mn2+) concentrations on the shoot growth of sorghum cultivars. : Journal of Plant Nutrition.
Chicago
Wilkinson RE, Duncan RR, . 1993. Interaction of hydrogen (H+) and manganese (Mn2+) concentrations on the shoot growth of sorghum cultivars. : Journal of Plant Nutrition.
Harvard
Wilkinson RE, Duncan RR, . (1993). Interaction of hydrogen (H+) and manganese (Mn2+) concentrations on the shoot growth of sorghum cultivars. : Journal of Plant Nutrition.
MLA
Wilkinson RE, Duncan RR, . Interaction of hydrogen (H+) and manganese (Mn2+) concentrations on the shoot growth of sorghum cultivars. : Journal of Plant Nutrition. 1993.