BLANK WILLIAM E. (1982). HANDBOOK FOR DEVELOPING COMPETENCY-BASED TRAINING PROGRAMS. PRENTICE -HALL INTERNATIONAL, INC.
Lua i Stíl Chicago (17ú heag.)BLANK WILLIAM E. HANDBOOK FOR DEVELOPING COMPETENCY-BASED TRAINING PROGRAMS. NEW JERSEY: PRENTICE -HALL INTERNATIONAL, INC, 1982.
Lua MLA (9ú heag.)BLANK WILLIAM E. HANDBOOK FOR DEVELOPING COMPETENCY-BASED TRAINING PROGRAMS. PRENTICE -HALL INTERNATIONAL, INC, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.