Eastern Book Company. Maternity Benefit Act , 1961 (20th.). Eastern Book company.
芝加哥风格引文Eastern Book Company. Maternity Benefit Act , 1961. 20th. Lucknow Lucknow: Eastern Book company.
MLA引文Eastern Book Company. Maternity Benefit Act , 1961. 20th. Eastern Book company.
警告：这些引文格式不一定是100％准确.