I.C.S. reference library. A series of textbooks prepared for the students of the International Correspondence Schools and containing ... the instruction papers, examination questions and keys used in their various courses.
International Correspondence Schools.
Scranton, 
[1904-1909]
Wanting no. 16-17, 23-28, 36-38, 41, 68-73, 75-77, 80-82, 93-96, 98, 122-123, 126, 129, 143, 152, 175, 199-203, 208-17.