International Development Research Centre. 1991. Research knowledge in the pursuit of change. Ottawa:International Development Research Centre;
International Development Research Centre. (1991) Research knowledge in the pursuit of change. International Development Research Centre:Ottawa.
International Development Research Centre. Research knowledge in the pursuit of change. Ottawa:International Development Research Centre, 1991. Print.
International Development Research Centre. (1991) Research knowledge in the pursuit of change. International Development Research Centre:Ottawa.