Manganese-nickel ferrites MnxNi1-xFe2O4 for x=0.25 were effectively made by using the auto combustion process, nitrates, and citric acid (C6H8O7) as a combustion agent. The morphology and structure of ferrites were examined using the X-Ray Diffractometer (XRD), thermal gravity (TG) for the temperature range of 30°C to 600°C, and scanning electronic microscopy (SEM). The saturation magnetization was determined and the hysteresis curves were shown using a vibrating sample magnetometer (VSM). Fourier transform infrared (FTIR) spectroscopy was used to validate the presence of metal oxide bands and the removal of organic components.