Baral, G. (1998). Pregnancy outcome in maternal age 35 years and above.
芝加哥风格引文Baral, Gehanath. Pregnancy Outcome in Maternal Age 35 Years and Above. 1998.
MLA引文Baral, Gehanath. Pregnancy Outcome in Maternal Age 35 Years and Above. 1998.
警告：这些引文格式不一定是100％准确.