Dyfyniad APA
BLAIR, H., & ET AL. (1994). PHYSICIANS WITH SUBSTANCE ABUSE PROBLEMS AND THEIR RECOVERY ENVIRONMENT: A SURVEY.
Dyfyniad Arddull Chicago
BLAIR, H., and ET AL. PHYSICIANS WITH SUBSTANCE ABUSE PROBLEMS AND THEIR RECOVERY ENVIRONMENT: A SURVEY. 1994.
Dyfyniad MLA
BLAIR, H., and ET AL. PHYSICIANS WITH SUBSTANCE ABUSE PROBLEMS AND THEIR RECOVERY ENVIRONMENT: A SURVEY. 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.