APA (7th ed.) Citation
XIAN, H., & ET AL. (2008). GENETIC AND ENVIRONMENTAL CONTRIBUTIONS TO NICOTINE, ALCOHOL AND CANNABIS DEPENDENCE IN MALE TWINS.
Chicago Style (17th ed.) Citation
XIAN, H., and ET AL. GENETIC AND ENVIRONMENTAL CONTRIBUTIONS TO NICOTINE, ALCOHOL AND CANNABIS DEPENDENCE IN MALE TWINS. 2008.
MLA (9th ed.) Citation
XIAN, H., and ET AL. GENETIC AND ENVIRONMENTAL CONTRIBUTIONS TO NICOTINE, ALCOHOL AND CANNABIS DEPENDENCE IN MALE TWINS. 2008.
Warning: These citations may not always be 100% accurate.