ROBINSON, S. M. E. &. J. F. (1965). STANDARD PLAN OPERATOR'S QUESTIONS AND ANSWER, VOL. II. McGraw-Hill Book Co.
Lua i Stíl Chicago (17ú heag.)ROBINSON, STEPHEN MICHAEL ELONKA & JOSEPH FREDERICH. STANDARD PLAN OPERATOR'S QUESTIONS AND ANSWER, VOL. II. McGraw-Hill Book Co, 1965.
Lua MLA (8ú heag.)ROBINSON, STEPHEN MICHAEL ELONKA & JOSEPH FREDERICH. STANDARD PLAN OPERATOR'S QUESTIONS AND ANSWER, VOL. II. McGraw-Hill Book Co, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.