APA (7th ed.) Citation

The_ESSENTIALS... & [et.al.], R. A. H. (1997). The ESSENTIALS of contraceptive technology. The Johns Hopkins school.

Chicago Style (17th ed.) Citation

The_ESSENTIALS... and Robert A. Hatcher [et.al.]. The ESSENTIALS of Contraceptive Technology. The Johns Hopkins school, 1997.

MLA (8th ed.) Citation

The_ESSENTIALS... and Robert A. Hatcher [et.al.]. The ESSENTIALS of Contraceptive Technology. The Johns Hopkins school, 1997.

Warning: These citations may not always be 100% accurate.