APA

Goplerud E. N., United States, . (1990). Breaking new ground for youth at risk. Rockville, MD: U.S. Dept. of Health and Human Services, Public Health Service, Alcohol, Drug Abuse, and Mental Health Administration, Office for Substance Abuse Prevention.

Chicago

Goplerud Eric N, United States, . 1990. Breaking new ground for youth at risk. Rockville, MD: U.S. Dept. of Health and Human Services, Public Health Service, Alcohol, Drug Abuse, and Mental Health Administration, Office for Substance Abuse Prevention.

Harvard

Goplerud E. N., United States, . (1990). Breaking new ground for youth at risk. Rockville, MD: U.S. Dept. of Health and Human Services, Public Health Service, Alcohol, Drug Abuse, and Mental Health Administration, Office for Substance Abuse Prevention.

MLA

Goplerud Eric N, United States, . Breaking new ground for youth at risk. Rockville, MD: U.S. Dept. of Health and Human Services, Public Health Service, Alcohol, Drug Abuse, and Mental Health Administration, Office for Substance Abuse Prevention. 1990.