Ebbitt, W. R. (1982). Whiter's Guide and index to english (séptima edición.). Scott, Foresman and Company.
Citazione stile Chigago Style (17a edizione)Ebbitt, Wilma R. Whiter's Guide and Index to English. séptima edición. Glenview, Illinois: Scott, Foresman and Company, 1982.
Citatione MLA (9a ed.)Ebbitt, Wilma R. Whiter's Guide and Index to English. séptima edición. Scott, Foresman and Company, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.