APA Citatie

Arias Zapata, A., Coto Arce, K. V., Villalobos Herrera, D., & Ortiz Ureña, A. (2018). Patterns of drug usage in a representative sample of students and teachers at University of Costa Rica in 2017.

Chicago Style citaat

Arias Zapata, Andrés, Karla Vanessa Coto Arce, Daniela Villalobos Herrera, en Angie Ortiz Ureña. Patterns of Drug Usage in a Representative Sample of Students and Teachers At University of Costa Rica in 2017. 2018.

MLA citatie

Arias Zapata, Andrés, Karla Vanessa Coto Arce, Daniela Villalobos Herrera, en Angie Ortiz Ureña. Patterns of Drug Usage in a Representative Sample of Students and Teachers At University of Costa Rica in 2017. 2018.