APA (7th ed.) Citation
SECKER-WALKER, R., & ET AL. (1997). EXHALED CARBONO MONOXIDE AND URINARY COTININE AS MEASURES OF SMOKING IN PREGNANCY.
Chicago Style (17th ed.) Citation
SECKER-WALKER, R.H, and ET AL. EXHALED CARBONO MONOXIDE AND URINARY COTININE AS MEASURES OF SMOKING IN PREGNANCY. 1997.
MLA (9th ed.) Citation
SECKER-WALKER, R.H, and ET AL. EXHALED CARBONO MONOXIDE AND URINARY COTININE AS MEASURES OF SMOKING IN PREGNANCY. 1997.
Warning: These citations may not always be 100% accurate.