Ellis Publishing Company. (1897). Guide to the Ellis system of actual business training and practical accounting: A full course of instruction in business practice and elementary and advanced accounting, for the use of commercial schools (Rev. ed.). Ellis.
Lua i Stíl Chicago (17ú heag.)Ellis Publishing Company. Guide to the Ellis System of Actual Business Training and Practical Accounting: A Full Course of Instruction in Business Practice and Elementary and Advanced Accounting, for the Use of Commercial Schools. Rev. ed. Battle Creek: Ellis, 1897.
Lua MLA (8ú heag.)Ellis Publishing Company. Guide to the Ellis System of Actual Business Training and Practical Accounting: A Full Course of Instruction in Business Practice and Elementary and Advanced Accounting, for the Use of Commercial Schools. Rev. ed. Ellis, 1897.