Dyfyniad APA

Welsh, J. A., Chilenski, S. M., Johnson, L., Greenberg, M. T., & Spoth, R. L. (2016). Pathways to Sustainability: 8-year follow-up from the PROSPER Project. J Prim Prev.

Dyfyniad Arddull Chicago

Welsh, Janet A., Sarah M. Chilenski, Lesley Johnson, Mark T. Greenberg, and Richard L. Spoth. "Pathways to Sustainability: 8-year Follow-up From the PROSPER Project." J Prim Prev 2016.

Dyfyniad MLA

Welsh, Janet A., et al. "Pathways to Sustainability: 8-year Follow-up From the PROSPER Project." J Prim Prev 2016.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.