APA (7th ed.) Citation

Loimer, N., Schmid, R., & Springer, A. (1991). Drug addiction and AIDS. Springer Verlag.

Chicago Style (17th ed.) Citation

Loimer, N., R. Schmid, and Alfred Springer. Drug Addiction and AIDS. Wien ; New York: Springer Verlag, 1991.

MLA (9th ed.) Citation

Loimer, N., et al. Drug Addiction and AIDS. Springer Verlag, 1991.