TY  - GEN
TI  - I. C. S. Reference library a series of textbooks prepared for the students of the international correspondence school and containing in permanent form the instruction papers, examination questions, and keys used in their various courses : arithmetic, elementary algebra, mensuration, physics
CY  - s.l. : Scranton International Textbook company, s.a.
KW  - Matemáticas
N1  - Cada parte de la obra con paginación propias. Encuadernación holandesa; Incluye índice de contenido
ER  -