Hatcher A., R. (1997). The Essentials of Contraceptive Technology; A Handbook for Clinic Staff.
芝加哥风格引文Hatcher A., Robert. The Essentials of Contraceptive Technology; A Handbook for Clinic Staff. 1997.
MLA引文Hatcher A., Robert. The Essentials of Contraceptive Technology; A Handbook for Clinic Staff. 1997.
警告：这些引文格式不一定是100％准确.