APA (7th ed.) Citation
Schulte, B., & et al. (2016). Non-prescribed use of opioid substitution medication: Patterns and trends in sub-populations of opioid users in Germany.
Chicago Style (17th ed.) Citation
Schulte, B., and et al. Non-prescribed Use of Opioid Substitution Medication: Patterns and Trends in Sub-populations of Opioid Users in Germany. 2016.
MLA (9th ed.) Citation
Schulte, B., and et al. Non-prescribed Use of Opioid Substitution Medication: Patterns and Trends in Sub-populations of Opioid Users in Germany. 2016.
Warning: These citations may not always be 100% accurate.