O'Donnell, M., & Todd, D. (1957). Workbook for Down the river road. Row, Peterson and Company.
Lua i Stíl Chicago (17ú heag.)O'Donnell, Mabel, agus Dorothy Todd. Workbook for Down the River Road. Evanston, Illinois ; White Plains, New York: Row, Peterson and Company, 1957.
Lua MLA (8ú heag.)O'Donnell, Mabel, agus Dorothy Todd. Workbook for Down the River Road. Row, Peterson and Company, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.