Gusain, P. (1990). Renewable energy in India. Har-Anand in association with Vikas.
芝加哥风格引文Gusain, P.P.S. Renewable Energy in India. Har-Anand in association with Vikas, 1990.
MLA引文Gusain, P.P.S. Renewable Energy in India. Har-Anand in association with Vikas, 1990.
警告：这些引文格式不一定是100％准确.