APA
Kristjanson P., Zerbini E., Rao K., Kiresur V. & Hofs P. (1999). Genetic enhancement of sorghum and millet residues fed to rumiants : un ex ante assessment of returns to research. Addi Ababa: International Livestock Centre for Africa.
Chicago
Kristjanson P.m, Zerbini E, Rao K.p.c, Kiresur V and Hofs P. 1999. Genetic enhancement of sorghum and millet residues fed to rumiants : un ex ante assessment of returns to research. Addi Ababa: International Livestock Centre for Africa.
Harvard
Kristjanson P., Zerbini E., Rao K., Kiresur V. and Hofs P. (1999). Genetic enhancement of sorghum and millet residues fed to rumiants : un ex ante assessment of returns to research. Addi Ababa: International Livestock Centre for Africa.
MLA
Kristjanson P.m, Zerbini E, Rao K.p.c, Kiresur V and Hofs P. Genetic enhancement of sorghum and millet residues fed to rumiants : un ex ante assessment of returns to research. Addi Ababa: International Livestock Centre for Africa. 1999.