APA (7th ed.) Citation

Barth, R. P. (1989). Reducing the risk: Building skills to prevent pregnancy : student workbook. Network Publications.

Chicago Style (17th ed.) Citation

Barth, Richard P. Reducing the Risk: Building Skills to Prevent Pregnancy : Student Workbook. Santa Cruz, CA: Network Publications, 1989.

MLA (9th ed.) Citation

Barth, Richard P. Reducing the Risk: Building Skills to Prevent Pregnancy : Student Workbook. Network Publications, 1989.