高秀勤. (2011). 职场孕妈安全读本: Safety textbook for pregnant women in the workforce. 新世界出版社.
Chicago (17e ed.) Bronvermelding高秀勤. 职场孕妈安全读本: Safety Textbook for Pregnant Women in the Workforce. 新世界出版社, 2011.
MLA (8e ed.) Bronvermelding高秀勤. 职场孕妈安全读本: Safety Textbook for Pregnant Women in the Workforce. 新世界出版社, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.